{"id":214972,"date":"2026-10-14T15:16:04","date_gmt":"2026-10-14T09:46:04","guid":{"rendered":"https:\/\/www.practicemock.com\/blog\/?p=214972"},"modified":"2026-10-14T15:16:25","modified_gmt":"2026-10-14T09:46:25","slug":"number-series-questions-for-nicl-ao","status":"publish","type":"post","link":"https:\/\/www.practicemock.com\/blog\/number-series-questions-for-nicl-ao\/","title":{"rendered":"Number Series Questions for NICL AO, Attempt a Free Quiz, Download PDF"},"content":{"rendered":"<div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/www.practicemock.com\/blog\/\">Home<\/a><\/span> \u00bb <span><a href=\"https:\/\/www.practicemock.com\/blog\/category\/nicl-ao\/\">NICL AO<\/a><\/span> \u00bb <span class=\"breadcrumb_last\" aria-current=\"page\">Number Series Questions for NICL AO<\/span><\/span><\/div>\n\n\n<p><\/p>\n\n\n\n<p>Number Series Questions for NICL AO help candidates improve their calculation speed, number patterns, and problem-solving skills for the Quantitative Aptitude section. These questions ask you to find a missing number or identify a number that does not follow the given pattern. Common patterns include addition, subtraction, multiplication, squares, cubes, and prime numbers. Regular practice can help you solve these questions faster and avoid careless mistakes. In this blog, you will find exam-level practice questions, answers with simple explanations, preparation tips, and useful resources for your NICL AO exam preparation.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-red-background-color has-text-color has-background wp-element-button\" href=\"http:\/\/practicemock.com\/?ref=16735\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Use Code \u201cNINE\u201d to Get 74% Off on All Courses<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.practicemock.com\/nicl-ao-test-series\/?ref=16735\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Attempt a Free NICL AO Mock Test<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Number Series Questions for NICL AO: Practice Quiz<\/strong><\/h2>\n\n\n\n<p>Here are 10 practice questions based on common number series patterns. The set includes missing-number and wrong-number questions to help you practise different methods. Try solving each question before checking the answers and explanations below. Practising <strong>Number Series Questions for NICL AO<\/strong> can help you improve your calculation speed, identify number patterns, and score better in the Quantitative Aptitude section.&nbsp;<\/p>\n\n\n\n<style>\n\/* Main Quiz Container *\/\n#quiz-1 {\n  font-family: Arial, sans-serif;\n  margin: 30px 0;\n}\n\n#quiz-1 * { \n  box-sizing: border-box; \n}\n\n#quiz-1 .quiz-container {\n  max-width: 700px;\n  margin: auto;\n  padding: 20px;\n  background: #fff;\n  border-radius: 14px;\n  box-shadow: 0 6px 16px rgba(0,0,0,0.10);\n}\n\n\/* Sticky Header for Score *\/\n#quiz-1-sticky-header {\n  position: sticky;\n  top: 0;\n  z-index: 100;\n  background: #1B2A4A;\n  color: #fff;\n  padding: 12px 20px;\n  border-radius: 10px 10px 0 0;\n  display: flex;\n  justify-content: space-between;\n  align-items: center;\n  font-size: 15px;\n  font-weight: bold;\n  box-shadow: 0 2px 8px rgba(0,0,0,0.25);\n  margin: -20px -20px 20px -20px;\n}\n\n#quiz-1-score-badge {\n  background: #155724; \/* Dark green badge *\/\n  color: #fff;\n  padding: 4px 14px;\n  border-radius: 20px;\n  font-size: 14px;\n  font-weight: 700;\n  white-space: nowrap;\n}\n\n\/* Question Boxes *\/\n#quiz-1 .question {\n  margin-bottom: 22px;\n  border: 1px solid #e4e7ef;\n  border-radius: 10px;\n  padding: 16px;\n  background: #f5f6fa;\n}\n\n#quiz-1 .question p {\n  font-weight: bold;\n  font-size: 14.5px;\n  color: #1B2A4A;\n  margin-bottom: 12px;\n  line-height: 1.55;\n}\n\n#quiz-1 .set-header {\n  font-size: 15px;\n  font-weight: bold;\n  color: #1B2A4A;\n  background: #e4e7ef;\n  padding: 10px 14px;\n  border-radius: 6px;\n  margin-bottom: 14px;\n}\n\n#quiz-1 .set-directions {\n  font-size: 13.5px;\n  color: #333;\n  margin-bottom: 12px;\n  line-height: 1.5;\n  background: #fff;\n  padding: 10px;\n  border-left: 4px solid #1B2A4A;\n  border-radius: 4px;\n}\n\n\/* Explanation \/ Solution Box *\/\n#quiz-1 .explanation-box {\n  display: none;\n  margin-top: 12px;\n  padding: 10px 12px;\n  background: #eef4fc;\n  border-left: 4px solid #1B2A4A;\n  border-radius: 4px;\n  font-size: 13.5px;\n  color: #1B2A4A;\n  line-height: 1.5;\n}\n\n\/* Answer Buttons *\/\n#quiz-1 button {\n  width: 100%;\n  padding: 11px 14px;\n  margin: 5px 0;\n  border: 1.5px solid #d1d5e0;\n  border-radius: 6px;\n  background: #fff;\n  color: #333;\n  font-size: 14.5px;\n  cursor: pointer;\n  text-align: left;\n  transition: background 0.15s, border-color 0.15s, color 0.15s;\n}\n\n#quiz-1 button:hover {\n  background: #e8f5ff;\n  border-color: #1B2A4A;\n  color: #1B2A4A;\n}\n\n\/* Button Colors when clicked *\/\n#quiz-1 button.correct {\n  background: #155724; \/* Dark solid green background *\/\n  border-color: #0c3815; \n  color: #ffffff; \/* White text for contrast *\/\n  font-weight: 600;\n}\n\n#quiz-1 button.wrong {\n  background: #721c24; \/* Dark solid red background *\/\n  border-color: #4a1117; \n  color: #ffffff; \/* White text for contrast *\/\n  font-weight: 600;\n}\n\n\/* Stops users from clicking again after answering *\/\n#quiz-1 button.locked { \n  pointer-events: none; \n}\n\n#quiz-1 button.correct.locked, \n#quiz-1 button.wrong.locked { \n  opacity: 1; \n}\n\n\/* Final Score Summary Box *\/\n#quiz-1 .final-summary {\n  margin-top: 36px;\n  padding: 20px;\n  border-radius: 12px;\n  background: #f5f6fa;\n  border: 2px solid #1B2A4A;\n}\n\n#quiz-1 .final-summary h3 {\n  text-align: center;\n  color: #1B2A4A;\n  margin-bottom: 20px;\n  font-size: 18px;\n}\n\n#quiz-1 .summary-row {\n  display: grid;\n  grid-template-columns: 120px 1fr 40px;\n  gap: 10px;\n  align-items: center;\n  margin-bottom: 12px;\n  font-weight: bold;\n  font-size: 13.5px;\n  color: #1B2A4A;\n}\n\n#quiz-1 .summary-bar {\n  height: 13px;\n  background: #dde1ea;\n  border-radius: 10px;\n  overflow: hidden;\n}\n\n#quiz-1 .bar-fill {\n  height: 100%;\n  width: 0%;\n  border-radius: 10px;\n  transition: width 0.5s ease;\n}\n\n\/* Progress Bar Colors *\/\n#quiz-1 .bar-attempted   { background: #1B2A4A; }\n#quiz-1 .bar-correct     { background: #155724; }\n#quiz-1 .bar-wrong       { background: #721c24; }\n#quiz-1 .bar-unattempted { background: #b0b7c3; width: 100%; }\n\n#quiz-1 .final-score {\n  text-align: center;\n  font-size: 18px;\n  margin-top: 20px;\n  padding-top: 16px;\n  border-top: 1px solid #d1d5e0;\n  color: #1B2A4A;\n}\n\n#quiz-1 .score-value {\n  font-size: 32px;\n  font-weight: 800;\n  color: #155724;\n  margin-left: 6px;\n}\n\n\/* === COMPLETION MODAL STYLES === *\/\n.completion-modal { \n  display: none; \n  position: fixed; \n  top: 0; left: 0; width: 100%; height: 100%; \n  background: rgba(0,0,0,0.75); \n  z-index: 99999; \n  align-items: center; \n  justify-content: center; \n  font-family: Arial, sans-serif; \n}\n\n.completion-modal.is-active { \n  display: flex; \n}\n\n.completion-content { \n  background: #ffffff; \n  padding: 40px 30px; \n  border-radius: 16px; \n  max-width: 450px; \n  width: 90%; \n  text-align: center; \n  box-shadow: 0 15px 40px rgba(0,0,0,0.3); \n  position: relative; \n}\n\n.completion-title {\n  color: #1B2A4A;\n  font-size: 24px;\n  font-weight: bold;\n  margin-top: 0;\n  margin-bottom: 10px;\n}\n\n.completion-score-text {\n  font-size: 18px;\n  color: #555;\n  margin-top: 20px;\n  margin-bottom: 5px;\n}\n\n.completion-score-number {\n  font-size: 54px;\n  font-weight: 900;\n  color: #155724;\n  margin: 0 0 25px 0;\n  line-height: 1;\n}\n\n.completion-message {\n  font-size: 16px;\n  color: #444;\n  line-height: 1.5;\n  margin-bottom: 30px;\n}\n\n.completion-btn {\n  display: inline-block;\n  background: #00C853;\n  color: #ffffff;\n  text-decoration: none;\n  padding: 16px 30px;\n  font-size: 17px;\n  font-weight: bold;\n  border-radius: 8px;\n  transition: background 0.2s, transform 0.1s;\n  width: 100%;\n  box-shadow: 0 4px 10px rgba(0, 200, 83, 0.3);\n}\n\n.completion-btn:hover {\n  background: #00b34a;\n  transform: translateY(-2px);\n}\n\n.completion-close {\n  position: absolute;\n  top: 15px;\n  right: 20px;\n  font-size: 24px;\n  color: #999;\n  cursor: pointer;\n  background: none;\n  border: none;\n}\n.completion-close:hover { color: #333; }\n<\/style>\n\n<div id=\"quiz-1\">\n  <div class=\"quiz-container\">\n\n    <div id=\"quiz-1-sticky-header\">\n      <span> Quantitative Aptitude Quiz: Number Series <\/span>\n      <span id=\"quiz-1-score-badge\">Score: <strong id=\"quiz-1-score-value\">0.00<\/strong><\/span>\n    <\/div>\n\n    <div id=\"questions-wrapper\">\n\n        <!-- SET 1 -->\n        <div class=\"set-header\">Part 1: Missing Number Series (Q1 &#8211; Q5)<\/div>\n        <div class=\"set-directions\">\n          <strong>Directions (Q1\u2013Q5):<\/strong> Find the missing number in the following given series.\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q1. Find the Missing Number: 4, 11, 30, 67, 128, ?<\/p>\n          <button data-correct=\"false\">(a) 215<\/button>\n          <button data-correct=\"true\">(b) 219<\/button>\n          <button data-correct=\"false\">(c) 225<\/button>\n          <button data-correct=\"false\">(d) 231<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>The pattern follows (n\u00b3 + 3), where n increases from 1 onwards.<br>\u2022 1\u00b3 + 3 = 4<br>\u2022 2\u00b3 + 3 = 11<br>\u2022 3\u00b3 + 3 = 30<br>\u2022 4\u00b3 + 3 = 67<br>\u2022 5\u00b3 + 3 = 128<br>\u2022 6\u00b3 + 3 = 216 + 3 = 219<br>Therefore, the missing number is 219.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q2. Find the Missing Number: 12, 13, 28, 87, 352, ?<\/p>\n          <button data-correct=\"false\">(a) 1,755<\/button>\n          <button data-correct=\"false\">(b) 1,760<\/button>\n          <button data-correct=\"true\">(c) 1,765<\/button>\n          <button data-correct=\"false\">(d) 1,770<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>Multiply each number by consecutive natural numbers and add the same number.<br>\u2022 12 \u00d7 1 + 1 = 13<br>\u2022 13 \u00d7 2 + 2 = 28<br>\u2022 28 \u00d7 3 + 3 = 87<br>\u2022 87 \u00d7 4 + 4 = 352<br>\u2022 352 \u00d7 5 + 5 = 1,765<br>Therefore, the missing number is 1,765.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q3. Find the Missing Number: 7, 8, 18, 57, ?, 1,165<\/p>\n          <button data-correct=\"false\">(a) 220<\/button>\n          <button data-correct=\"false\">(b) 228<\/button>\n          <button data-correct=\"true\">(c) 232<\/button>\n          <button data-correct=\"false\">(d) 240<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>The series follows the pattern of multiplying by consecutive natural numbers and adding the same number.<br>\u2022 7 \u00d7 1 + 1 = 8<br>\u2022 8 \u00d7 2 + 2 = 18<br>\u2022 18 \u00d7 3 + 3 = 57<br>\u2022 57 \u00d7 4 + 4 = 232<br>\u2022 232 \u00d7 5 + 5 = 1,165<br>Therefore, the missing number is 232.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q4. Find the Missing Number: 10, 14, 23, 39, 64, ?<\/p>\n          <button data-correct=\"false\">(a) 90<\/button>\n          <button data-correct=\"false\">(b) 94<\/button>\n          <button data-correct=\"false\">(c) 98<\/button>\n          <button data-correct=\"true\">(d) 100<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>Find the difference between consecutive numbers:<br>\u2022 14 \u2212 10 = 4 = 2\u00b2<br>\u2022 23 \u2212 14 = 9 = 3\u00b2<br>\u2022 39 \u2212 23 = 16 = 4\u00b2<br>\u2022 64 \u2212 39 = 25 = 5\u00b2<br>The next difference should be 6\u00b2 = 36.<br>Therefore, 64 + 36 = 100.<br>The missing number is 100.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q5. Find the Missing Number: 50, 49, 47, 44, 40, ?<\/p>\n          <button data-correct=\"false\">(a) 32<\/button>\n          <button data-correct=\"false\">(b) 34<\/button>\n          <button data-correct=\"true\">(c) 35<\/button>\n          <button data-correct=\"false\">(d) 36<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>The series decreases by consecutive natural numbers:<br>\u2022 50 \u2212 1 = 49<br>\u2022 49 \u2212 2 = 47<br>\u2022 47 \u2212 3 = 44<br>\u2022 44 \u2212 4 = 40<br>\u2022 40 \u2212 5 = 35<br>Therefore, the missing number is 35.<\/div>\n        <\/div>\n\n        <!-- SET 2 -->\n        <div class=\"set-header\">Part 2: Wrong Number Series (Q6 &#8211; Q10)<\/div>\n        <div class=\"set-directions\">\n          <strong>Directions (Q6\u2013Q10):<\/strong> Identify the wrong number in the given series.\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q6. Identify the Wrong Number: 3, 5, 13, 43, 176, 891<\/p>\n          <button data-correct=\"false\">(a) 5<\/button>\n          <button data-correct=\"false\">(b) 13<\/button>\n          <button data-correct=\"false\">(c) 43<\/button>\n          <button data-correct=\"true\">(d) 176<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>The series follows the pattern of multiplying by consecutive natural numbers and adding increasing numbers:<br>\u2022 3 \u00d7 1 + 2 = 5<br>\u2022 5 \u00d7 2 + 3 = 13<br>\u2022 13 \u00d7 3 + 4 = 43<br>\u2022 43 \u00d7 4 + 5 = 177<br>\u2022 177 \u00d7 5 + 6 = 891<br>The fourth operation should produce 177, not 176. Therefore, 176 is the wrong number.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q7. Identify the Wrong Number: 6, 7, 16, 41, 90, 154, 292<\/p>\n          <button data-correct=\"false\">(a) 7<\/button>\n          <button data-correct=\"false\">(b) 41<\/button>\n          <button data-correct=\"false\">(c) 90<\/button>\n          <button data-correct=\"true\">(d) 154<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>The series follows the pattern of adding squares of consecutive odd numbers:<br>\u2022 6 + 1\u00b2 = 7<br>\u2022 7 + 3\u00b2 = 16<br>\u2022 16 + 5\u00b2 = 41<br>\u2022 41 + 7\u00b2 = 90<br>\u2022 90 + 9\u00b2 = 171<br>\u2022 171 + 11\u00b2 = 292<br>The number 154 should be 171. Therefore, 154 is the wrong number.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q8. Identify the Wrong Number: 5, 11, 23, 47, 96, 191<\/p>\n          <button data-correct=\"false\">(a) 11<\/button>\n          <button data-correct=\"false\">(b) 23<\/button>\n          <button data-correct=\"true\">(c) 96<\/button>\n          <button data-correct=\"false\">(d) 191<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>The series follows the pattern of multiplying each number by 2 and adding 1:<br>\u2022 5 \u00d7 2 + 1 = 11<br>\u2022 11 \u00d7 2 + 1 = 23<br>\u2022 23 \u00d7 2 + 1 = 47<br>\u2022 47 \u00d7 2 + 1 = 95<br>\u2022 95 \u00d7 2 + 1 = 191<br>The number 96 should be 95 to maintain the pattern. Therefore, 96 is the wrong number.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q9. Identify the Wrong Number: 8, 18, 40, 86, 178, 370<\/p>\n          <button data-correct=\"false\">(a) 18<\/button>\n          <button data-correct=\"false\">(b) 40<\/button>\n          <button data-correct=\"false\">(c) 86<\/button>\n          <button data-correct=\"true\">(d) 178<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>Multiply each number by 2 and add consecutive even numbers:<br>\u2022 8 \u00d7 2 + 2 = 18<br>\u2022 18 \u00d7 2 + 4 = 40<br>\u2022 40 \u00d7 2 + 6 = 86<br>\u2022 86 \u00d7 2 + 8 = 180<br>\u2022 180 \u00d7 2 + 10 = 370<br>The number 178 should be 180. Therefore, 178 is the wrong number.<\/div>\n        <\/div>\n\n        <div class=\"question\" data-answered=\"false\">\n          <p>Q10. Identify the Wrong Number: 123, 128, 135, 146, 160, 176<\/p>\n          <button data-correct=\"false\">(a) 128<\/button>\n          <button data-correct=\"false\">(b) 135<\/button>\n          <button data-correct=\"false\">(c) 146<\/button>\n          <button data-correct=\"true\">(d) 160<\/button>\n          <div class=\"explanation-box\"><strong>Solution:<\/strong><br>The series increases by consecutive prime numbers: 5, 7, 11, 13, and 17.<br>\u2022 123 + 5 = 128<br>\u2022 128 + 7 = 135<br>\u2022 135 + 11 = 146<br>\u2022 146 + 13 = 159<br>\u2022 159 + 17 = 176<br>The number 160 should be 159. Therefore, 160 is the wrong number.<\/div>\n        <\/div>\n\n    <\/div>\n\n    <div class=\"final-summary\">\n      <h3>Quiz Summary<\/h3>\n\n      <div class=\"summary-row\">\n        <span>Attempted<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-attempted\" data-summary=\"attempted\"><\/div><\/div>\n        <span data-count=\"attempted\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Correct<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-correct\" data-summary=\"correct\"><\/div><\/div>\n        <span data-count=\"correct\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Wrong<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-wrong\" data-summary=\"wrong\"><\/div><\/div>\n        <span data-count=\"wrong\">0<\/span>\n      <\/div>\n\n      <div class=\"summary-row\">\n        <span>Unattempted<\/span>\n        <div class=\"summary-bar\"><div class=\"bar-fill bar-unattempted\" data-summary=\"unattempted\"><\/div><\/div>\n        <span data-count=\"unattempted\">0<\/span>\n      <\/div>\n\n      <div class=\"final-score\">\n        Final Score: <span class=\"score-value\" data-score>0.00<\/span>\n      <\/div>\n    <\/div>\n\n  <\/div>\n<\/div>\n\n<div class=\"completion-modal\" id=\"quiz-completion-modal\">\n  <div class=\"completion-content\">\n    <button class=\"completion-close\" onclick=\"closeCompletionModal()\">\u2716<\/button>\n    <h2 class=\"completion-title\">Quiz Completed!<\/h2>\n\n    <div class=\"completion-score-text\">You have scored:<\/div>\n    <div class=\"completion-score-number\" id=\"final-modal-score\">0.00<\/div>\n\n    <p class=\"completion-message\">If you want to solve more exam-level questions then click here.<\/p>\n\n    <a href=\"https:\/\/s1.practicemock.com\/exams\/?c=ssctopicca&#038;i=ssc\" class=\"completion-btn\">Solve More Questions<\/a>\n  <\/div>\n<\/div>\n\n<script>\n(function() {\n  const quizBox = document.getElementById('quiz-1');\n  const allQuestions = quizBox.querySelectorAll('.question');\n  const totalQuestions = allQuestions.length; \n\n  const storageName = 'quant_number_series_quiz_v1';\n\n  let currentScore = 0;\n  let totalAttempted = 0;\n  let totalCorrect = 0;\n  let totalWrong = 0;\n\n  window.closeCompletionModal = function() {\n    document.getElementById('quiz-completion-modal').classList.remove('is-active');\n  };\n\n  function getSavedData() {\n    try { \n      return JSON.parse(sessionStorage.getItem(storageName) || '{}'); \n    } catch { \n      return {}; \n    }\n  }\n\n  function saveData(data) {\n    sessionStorage.setItem(storageName, JSON.stringify(data));\n  }\n\n  function refreshScreen() {\n    const totalUnattempted = totalQuestions - 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(totalWrong * 0.5);\n  refreshScreen();\n\n  if (totalAttempted === totalQuestions) {\n      document.getElementById('quiz-completion-modal').classList.add('is-active');\n  }\n\n  allQuestions.forEach((question, index) => {\n    const buttons = question.querySelectorAll(\"button\");\n\n    buttons.forEach((btn, buttonIndex) => {\n      btn.addEventListener(\"click\", function() {\n        if (question.dataset.answered === \"true\") return;\n\n        question.dataset.answered = \"true\";\n        totalAttempted++;\n        buttons.forEach(b => b.classList.add(\"locked\"));\n\n        const isRightAnswer = (btn.dataset.correct === \"true\");\n\n        if (isRightAnswer) {\n          btn.classList.add(\"correct\");\n          totalCorrect++;\n        } else {\n          btn.classList.add(\"wrong\");\n          totalWrong++;\n          question.querySelector(\"[data-correct='true']\").classList.add(\"correct\");\n        }\n\n        const exp = question.querySelector(\".explanation-box\");\n        if (exp) exp.style.display = \"block\";\n\n        currentScore = (totalCorrect * 2) - (totalWrong * 0.5);\n        pastAnswers[index] = { chosenIndex: buttonIndex, correct: isRightAnswer };\n        saveData(pastAnswers);\n        refreshScreen();\n\n        if (totalAttempted === totalQuestions) {\n            setTimeout(function() {\n                document.getElementById('quiz-completion-modal').classList.add('is-active');\n            }, 800);\n        }\n      });\n    });\n  });\n\n})();\n<\/script>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-vivid-cyan-blue-background-color has-text-color has-background wp-element-button\" href=\"https:\/\/www.practicemock.com\/nicl-ao-test-series\/?next=https%3A%2F%2Fs1.practicemock.com%2Fexams%2F%3Fc%3Ddashboard%26i%3Dbanking%26dl%3Dhttps%253A%252F%252Fwww.practicemock.com%252Fpricing%252Fmarketing%252Ffiles%252Fpdf%252Fnumber-series-important-questions.pdf&amp;ref=16735\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Download Number Series Questions for NICL AO 2026 Free PDF<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Number Series Questions for NICL AO 2026: Understanding the Exam Trend<\/strong><\/h2>\n\n\n\n<p>Number series is an important topic in Quantitative Aptitude. In these Number Series Questions for NICL AO, you get a list of numbers arranged according to a hidden rule. Your task is to find that rule and choose the correct answer.<\/p>\n\n\n\n<p>For the NICL AO exam, practise these common types of number patterns:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Missing Number Series:<\/strong> Find the number that completes the given sequence.<\/li>\n\n\n\n<li><strong>Wrong Number Series:<\/strong> Identify the number that breaks the pattern.<\/li>\n\n\n\n<li><strong>Difference-Based Series:<\/strong> Check the gaps between consecutive numbers.<\/li>\n\n\n\n<li><strong>Multiplication-Based Series:<\/strong> Look for multiplication followed by addition or subtraction.<\/li>\n\n\n\n<li><strong>Square and Cube Series:<\/strong> Identify patterns involving perfect squares and cubes.<\/li>\n\n\n\n<li><strong>Prime Number Series:<\/strong> Check whether the differences follow prime numbers.<\/li>\n\n\n\n<li><strong>Mixed Number Series:<\/strong> Look for a combination of two or more rules.<\/li>\n<\/ol>\n\n\n\n<p><strong>Tip:<\/strong> Do not start calculating randomly. First, check the difference between consecutive numbers. If the gaps do not follow a clear rule, try multiplication, division, squares, cubes, or a combination of operations.<\/p>\n\n\n\n<p>For the complete list of exam topics, read the <a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-syllabus\/\">NICL AO Syllabus and Exam Pattern<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Basic Rules to Solve NICL AO Number Series Questions<\/strong><\/h2>\n\n\n\n<p>Before attempting the quiz, understand these simple rules. They can help you find the pattern without wasting too much time. A pattern should explain the entire series, not just two or three numbers.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Pattern<\/strong><\/td><td><strong>What to Check<\/strong><\/td><td><strong>Example<\/strong><\/td><\/tr><tr><td>Addition<\/td><td>Numbers increase by a fixed amount<\/td><td>5, 10, 15, 20<\/td><\/tr><tr><td>Subtraction<\/td><td>Numbers decrease by a fixed amount<\/td><td>30, 25, 20, 15<\/td><\/tr><tr><td>Multiplication<\/td><td>Each number is multiplied by the same value<\/td><td>2, 4, 8, 16<\/td><\/tr><tr><td>Squares<\/td><td>Numbers follow square values<\/td><td>1, 4, 9, 16, 25<\/td><\/tr><tr><td>Cubes<\/td><td>Numbers follow cube values<\/td><td>1, 8, 27, 64, 125<\/td><\/tr><tr><td>Increasing differences<\/td><td>The gap changes in a pattern<\/td><td>2, 5, 9, 14, 20<\/td><\/tr><tr><td>Mixed operations<\/td><td>Multiplication or addition rules change step by step<\/td><td>3, 7, 17, 51<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Quick Method to Find the Pattern<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Step 1:<\/strong> Find the difference between each pair of numbers.<\/li>\n\n\n\n<li><strong>Step 2:<\/strong> Check whether the differences increase or decrease regularly.<\/li>\n\n\n\n<li><strong>Step 3:<\/strong> If the gaps do not help, check multiplication and division.<\/li>\n\n\n\n<li><strong>Step 4:<\/strong> Look for squares, cubes, or prime numbers.<\/li>\n\n\n\n<li><strong>Step 5:<\/strong> Apply the rule to the remaining numbers to confirm your answer.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Tips to Solve Number Series Questions for NICL AO<\/strong><\/h2>\n\n\n\n<p>Regular practice of <strong>Number Series Questions for NICL AO<\/strong> can help you recognise patterns faster and approach Quantitative Aptitude questions with greater confidence. Consistent practice also improves calculation speed, accuracy, and time management during the exam.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Check the differences:<\/strong> Subtract consecutive terms to find a pattern.<\/li>\n\n\n\n<li><strong>Look for multiplication:<\/strong> Check whether the numbers are multiplied or divided by consecutive integers.<\/li>\n\n\n\n<li><strong>Identify squares and cubes:<\/strong> Patterns involving squares, cubes, and prime numbers are common in number series questions.<\/li>\n\n\n\n<li><strong>Check the operations carefully:<\/strong> A wrong-number series may contain only one term that breaks an otherwise consistent pattern.<\/li>\n\n\n\n<li><strong>Practise with a timer:<\/strong> Solve questions under time limits to improve speed and accuracy.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to Practise NICL AO Number Series Questions?<\/strong><\/h2>\n\n\n\n<p>Practising <strong>Number Series Questions for NICL AO<\/strong> with a clear plan can help you improve your speed and accuracy. Follow these simple steps to understand number patterns, avoid common mistakes, and prepare more effectively for the Quantitative Aptitude section.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Start with basic patterns:<\/strong> Learn addition, subtraction, multiplication, squares, and cubes.<\/li>\n\n\n\n<li><strong>Move to mixed patterns:<\/strong> Practise questions that use two operations together.<\/li>\n\n\n\n<li><strong>Solve questions with a timer:<\/strong> This helps you learn to manage your time during the exam.<\/li>\n\n\n\n<li><strong>Use a practice PDF:<\/strong> Save questions for revision and solve them again without checking the answers.<\/li>\n\n\n\n<li><strong>Attempt mock tests:<\/strong> Practise number series along with other Quantitative Aptitude topics.<\/li>\n\n\n\n<li><strong>Track your accuracy:<\/strong> Note how many questions you solve correctly and which patterns cause trouble.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Final Thoughts<\/strong><\/h2>\n\n\n\n<p>Regular practice of <strong>Number Series Questions for NICL AO<\/strong> can make them easier to solve. Start with simple patterns, learn to recognise number relationships, and gradually practise mixed and challenging questions. Review every mistake and use timed tests to improve your speed and accuracy. Combine number series practice with other Quantitative Aptitude topics to prepare for the NICL AO exam in a balanced way. For more exam preparation resources, visit <a href=\"https:\/\/www.practicemock.com\/\">PracticeMock<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Related Blogs<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-syllabus\/\">NICL AO Syllabus 2026<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-salary\/\">NICL AO Salary 2026<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-eligibility-criteria\/\">NICL AO Eligibility Criteria 2026<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-handwritten-declaration\/\">NICL AO Handwritten Declaration 2026<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-notification\/\">NICL AO Notification 2026<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/most-imp-computer-terms-for-bank-exams\/\">Most Imp. Computer Terms for Bank, Insurance &amp; SSC Exams<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/last-minute-tips-for-nicl-ao\/\">Last Minute Tips for NICL AO<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/how-to-crack-nicl-ao-in-1-month\/\">How to Crack NICL AO in Less Than One Month?<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-previous-year-paper-pdf\/\">NICL AO Previous Year Question Papers<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/nicl-ao-mains-exam-check-last-5-years-questions-trend\/\">NICL AO Mains Exam Trends<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Number Series Questions for NICL AO FAQs<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q1. What are number series questions in the NICL AO exam?<\/strong><\/h3>\n\n\n\n<p>Number series questions ask you to find a missing number or identify an incorrect number in a sequence. You need to recognise the rule connecting the numbers.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q2. Which number series patterns should I practise for NICL AO?<\/strong><\/h3>\n\n\n\n<p>Practise addition, subtraction, multiplication, division, square numbers, cube numbers, prime-number differences, and mixed-operation series. Also practise both missing-number and wrong-number questions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q3. How can I solve number series questions quickly?<\/strong><\/h3>\n\n\n\n<p>Start by finding the differences between consecutive numbers. If the differences do not show a clear pattern, check multiplication, division, squares, cubes, or mixed operations. Confirm that your rule fits the full series.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q4. Are number series questions part of NICL AO Quantitative Aptitude?<\/strong><\/h3>\n\n\n\n<p>Number Series is included in the Quantitative Aptitude topics listed in PracticeMock&#8217;s NICL AO syllabus guide. Candidates should check the latest notification and syllabus for the current recruitment cycle.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q5. How can I improve my accuracy in number series questions?<\/strong><\/h3>\n\n\n\n<p>Practise different patterns regularly, avoid guessing, and check your rule against every term. Review incorrect answers to understand where your method went wrong.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q6. Should I memorise squares and cubes for number series?<\/strong><\/h3>\n\n\n\n<p>Yes. Knowing common squares and cubes can help you recognise patterns faster. Start with squares up to 30 and cubes up to 15, then revise them regularly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q7. Can I practise number series questions through a mock test?<\/strong><\/h3>\n\n\n\n<p>Yes. You can use the NICL AO Mock Test to practise Quantitative Aptitude and review your performance. Check the available test features for topic-wise practice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q8. Where can I get a Number Series Questions for NICL AO PDF?<\/strong><\/h3>\n\n\n\n<p>You can use available practice resources and save questions for revision. Visit the PracticeMock NICL AO test page to check the currently available practice tests and study materials.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q9. What should I do if I cannot identify the pattern?<\/strong><\/h3>\n\n\n\n<p>Do not spend too much time on one question. Check the differences, multiplication, and square or cube patterns. If the rule is still unclear, move on and return to the question after completing easier ones.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Master number series questions for NICL AO with answers, easy explanations, a free quiz, downloadable PDF, and preparation tips for Quantitative Aptitude.<\/p>\n","protected":false},"author":40,"featured_media":214973,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[3991,22],"tags":[],"class_list":["post-214972","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nicl-ao","category-banking-insurance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Number Series Questions for NICL AO: Free Quiz and PDF<\/title>\n<meta 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