{"id":190809,"date":"2025-12-20T22:40:00","date_gmt":"2025-12-20T17:10:00","guid":{"rendered":"https:\/\/www.practicemock.com\/blog\/?p=190809"},"modified":"2025-12-19T17:07:50","modified_gmt":"2025-12-19T11:37:50","slug":"series-questions-for-rrb-ntpc","status":"publish","type":"post","link":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/","title":{"rendered":"Series Questions for RRB NTPC: Download Free PDF &#038; Practice Now"},"content":{"rendered":"\n<p><\/p>\n\n\n<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\/rrb-ntpc\/\">RRB NTPC<\/a><\/span> \u00bb <span class=\"breadcrumb_last\" aria-current=\"page\">Series Questions for RRB NTPC<\/span><\/span><\/div>\n\n\n<p><\/p>\n\n\n\n<p><strong>Preparing for the <a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-notification\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC<\/a> exam?<\/strong> You&#8217;re aware that the competition for Railway jobs is extremely high. If you want to crack this exam than you should value every single mark. In the General Intelligence and Reasoning section, there is one topic that appears the most: Series Completion. You have seen these questions before. A string of numbers like <em>2, 5, 10, 17, ?<\/em> or letters like <em>AZ, BY, CX, ?<\/em>. They look like simple puzzles. But still, most candidates fail due to less practice. These questions can waste your precious time if you don&#8217;t spot the pattern quickly. In the exam hall pressure, your brain might get stuck finding the logic. To help you with these issues we have provided exam-level, frequently asked series questions for RRB NTPC.<\/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-cyan-blue-background-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.practicemock.com\/railway-rrb-ntpc-test-series\/?next=https%3A%2F%2Fs1.practicemock.com%2Fexams%2F%3Fc%3Dssctopiclr%26i%3Dssc&amp;ref=14960\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Attempt Free Series Tests for RRB NTPC Exam<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why are Series Questions Important?<\/h2>\n\n\n\n<p>In RRB NTPC, the Reasoning section is the highest-scoring area.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>High Weightage:<\/strong> You can expect <strong>3 to 5 questions<\/strong> from the Number and Alphabet Series combined. That\u2019s solid marks in your pocket.<\/li>\n\n\n\n<li><strong>Brain Warm-up:<\/strong> Solving these questions first gives you confidence for the tougher Math section.<\/li>\n\n\n\n<li><strong>Simple Logic:<\/strong> Unlike Bank exams, Railway series questions are direct. You don&#8217;t need complex multi-step calculations.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Common Types of Series You Must Know<\/h3>\n\n\n\n<p>Before you start practicing, you should know what to look for.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Number Series:<\/strong> Based on addition, subtraction, multiplication, squares, or cubes.<\/li>\n\n\n\n<li><strong>Alphabet Series:<\/strong> Based on the position of letters (A=1, B=2&#8230;).<\/li>\n\n\n\n<li><strong>Continuous Pattern Series:<\/strong> Jumbled letters like <em>a_b_c_a_<\/em>.<\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Download Free PDF of Series Questions for RRB NTPC<\/h2>\n\n\n\n<p>We have analyzed many years of previous question papers to provide you with the most important questions that can boost your preparation. These questions match the exact difficulty level of the exam. Download this PDF, save it, and practice these questions daily to improve your speed.<\/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-cyan-blue-background-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.practicemock.com\/railway-rrb-ntpc-test-series\/?next=https%3A%2F%2Fs1.practicemock.com%2Fexams%2F%3Fc%3Ddashboard%26i%3Dssc%26dl%3Dhttps%253A%252F%252Fwww.practicemock.com%252Fpricing%252Fmarketing%252Ffiles%252Fpdf%252Fseries-questions-for-rrb-ntpc.pdf&amp;ref=14960\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Download Free PDF of Series Questions for RRB NTPC<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Q1. Find the missing number:<\/strong><br>6, 12, 21, 33, ?<\/p>\n\n\n\n<p>(a) 45<br>(b) 48<br>(c) 40<br>(d) 46<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (b) 48<br><strong>Logic:<\/strong> Differences: 6, 9, 12 \u2192 increasing by 3. Next difference = 15.<br>33 + 15 = 48<\/p>\n\n\n\n<p><strong>Q2. Complete the series:<\/strong><br>1, 8, 27, 64, ?<\/p>\n\n\n\n<p>(a) 100<br>(b) 125<br>(c) 121<br>(d) 81<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (b) 125<br><strong>Logic:<\/strong> Perfect cubes: 1\u00b3, 2\u00b3, 3\u00b3, 4\u00b3 \u2192 next is 5\u00b3 = 125<\/p>\n\n\n\n<p><strong>Q3. Select the missing term:<\/strong><br>B, E, H, K, ?<\/p>\n\n\n\n<p>(a) M<br>(b) N<br>(c) O<br>(d) L<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (b) N<br><strong>Logic:<\/strong> Alphabet gap of +3: B \u2192 E \u2192 H \u2192 K \u2192 N<\/p>\n\n\n\n<p><strong>Q4. Find the wrong number in the series:<\/strong><br>3, 7, 15, 27, 63, 127<\/p>\n\n\n\n<p>(a) 27<br>(b) 63<br>(c) 15<br>(d) 7<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (a) 27<br><strong>Logic:<\/strong> Pattern is \u00d72 + 1.<br>15 \u00d7 2 + 1 = 31, but 27 is given.<\/p>\n\n\n\n<p><strong>Q5. Find the next number:<\/strong><br>2, 3, 5, 7, 11, ?<\/p>\n\n\n\n<p>(a) 12<br>(b) 13<br>(c) 14<br>(d) 15<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (b) 13<br><strong>Logic:<\/strong> Consecutive prime numbers.<\/p>\n\n\n\n<p><strong>Q6. Complete the letter series:<\/strong><br>AZ, CX, EV, GT, ?<\/p>\n\n\n\n<p>(a) HS<br>(b) IR<br>(c) JQ<br>(d) KP<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (b) IR<br><strong>Logic:<\/strong><br>First letters: A, C, E, G (+2) \u2192 I<br>Second letters: Z, X, V, T (\u22122) \u2192 R<\/p>\n\n\n\n<p><strong>Q7. Find the next number:<\/strong><br>10, 18, 28, 40, 54, ?<\/p>\n\n\n\n<p>(a) 70<br>(b) 72<br>(c) 68<br>(d) 74<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (a) 70<br><strong>Logic:<\/strong> Differences: 8, 10, 12, 14 \u2192 next is 16<br>54 + 16 = 70<\/p>\n\n\n\n<p><strong>Q8. Find the missing number:<\/strong><br>120, 99, 80, 63, 48, ?<\/p>\n\n\n\n<p>(a) 35<br>(b) 38<br>(c) 39<br>(d) 40<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (a) 35<br><strong>Logic:<\/strong> n\u00b2 \u2212 1:<br>11\u00b2\u22121, 10\u00b2\u22121, 9\u00b2\u22121, 8\u00b2\u22121, 7\u00b2\u22121 \u2192 next is 6\u00b2\u22121 = 35<\/p>\n\n\n\n<p><strong>Q9. Find the missing letters:<\/strong><br>a _ b c c _ a _ b b _ c<\/p>\n\n\n\n<p>(a) a, b, a, c<br>(b) a, c, c, a<br>(c) b, a, a, c<br>(d) b, a, b, a<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (a) a, b, a, c<br><strong>Logic:<\/strong> Repeating pattern: aabbcc \/ aabbcc<\/p>\n\n\n\n<p><strong>Q10. Find the next number:<\/strong><br>5, 11, 24, 51, 106, ?<\/p>\n\n\n\n<p>(a) 215<br>(b) 217<br>(c) 220<br>(d) 210<\/p>\n\n\n\n<p><strong>Answer:<\/strong> (b) 217<br><strong>Logic:<\/strong> \u00d72 + 1, \u00d72 + 2, \u00d72 + 3, \u00d72 + 4, \u00d72 + 5<br>106 \u00d7 2 + 5 = 217<\/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-cyan-blue-background-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.practicemock.com\/railway-rrb-ntpc-test-series\/?next=https%3A%2F%2Fs1.practicemock.com%2Fexams%2F%3Fc%3Ddashboard%26i%3Dssc%26dl%3Dhttps%253A%252F%252Fwww.practicemock.com%252Fpricing%252Fmarketing%252Ffiles%252Fpdf%252Fseries-questions-for-rrb-ntpc.pdf&amp;ref=14960\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Download Free PDF of Series Questions for RRB NTPC<\/strong><\/a><\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Prepare Series Questions Easily?<\/h2>\n\n\n\n<p>Solving Series is not magic; it is a method. Most candidates don&#8217;t know these methods, due to which they fail to solve these questions easily. Below, we have mentioned some tips and tricks that will help you solve these questions easily.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Learn Squares &amp; Cubes:<\/strong> This is the most important tip. Memorize squares up to 30 and cubes up to 15. If you see &#8220;343,&#8221; your brain should instantly scream &#8220;7 cubed!&#8221;<\/li>\n\n\n\n<li><strong>The Difference Method:<\/strong> If you are stuck on a number series, find the difference between the numbers. 90% of the time, the logic is hidden in the difference (or the difference of the difference).<\/li>\n\n\n\n<li><strong>Write the Alphabet:<\/strong> In the exam, write A to Z with their numbers (1-26) on your rough sheet immediately. It helps immensely with letter series.<\/li>\n\n\n\n<li><strong>Don&#8217;t Spend Too Much Time:<\/strong> Series questions can be traps. If you don&#8217;t see the logic in 30-40 seconds, skip it and come back later.<\/li>\n\n\n\n<li><strong>Practice Topic Tests:<\/strong> You need muscle memory for this. Attempt our <strong><a href=\"https:\/\/www.practicemock.com\/railway-rrb-ntpc-test-series\/?next=https%3A%2F%2Fs1.practicemock.com%2Fexams%2F%3Fc%3Dssctopiclr%26i%3Dssc&amp;ref=14960\" target=\"_blank\" rel=\"noreferrer noopener\">Free Topic Tests<\/a><\/strong> to train your brain to spot patterns faster.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.practicemock.com\/?next=https%3A%2F%2Fwww.practicemock.com%2Fs1pricing%2Findex.php%3Fc%3Dsscpro&amp;ref=14954\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1141\" height=\"700\" src=\"https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/10\/SSC-Packages.png\" alt=\"Budget-friendly online courses for SSC, Railways, and State exams, detailing 'SSC Pro' and 'SSC Prime' features.\" class=\"wp-image-183927\"\/><\/a><\/figure><\/div>\n\n\n<p><\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong><em>Join our exclusive Telegram group for expert guidance, personalized tips, and real-time solutions to boost your SSC exam prep. [<a href=\"https:\/\/t.me\/practicemockssc\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Click here to join now!<\/a>]<\/em><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td colspan=\"2\"><strong>Other Blogs Related To RRB NTPC<\/strong><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-vacancy\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Vacancy<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-eligibility-criteria\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Eligibility Criteria<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-cut-off-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Cut Off<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-syllabus-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Syllabus<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-salary-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Salary<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-study-plan-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Study Plan<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-preparation-strategy-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Preparation Strategy<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-reasoning-preparation-strategy-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Reasoning Preparation<\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-general-awareness-preparation-strategy-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC General Awareness Preparation<\/a><\/td><td><a href=\"https:\/\/www.practicemock.com\/blog\/rrb-ntpc-mathematics-preparation-strategy-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">RRB NTPC Mathematics Preparation<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQs: Series Questions for RRB NTPC<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1766043062600\"><strong class=\"schema-faq-question\">Is the Series topic difficult in RRB NTPC?<\/strong> <p class=\"schema-faq-answer\">No. It ranges from Easy to Moderate. The patterns are usually standard (squares, cubes, addition).<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1766043071883\"><strong class=\"schema-faq-question\">How many Series questions can I expect?<\/strong> <p class=\"schema-faq-answer\">You can expect around 3 to 5 questions in the General Intelligence and Reasoning section.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1766043083670\"><strong class=\"schema-faq-question\">What is the best trick for Number Series?<\/strong> <p class=\"schema-faq-answer\">Check the gap (difference) between numbers first. If the gap increases slowly, it is an addition. If it increases very fast, it is multiplication.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1766043096956\"><strong class=\"schema-faq-question\">Where can I download the free PDF?<\/strong> <p class=\"schema-faq-answer\">You can download the free, exam-level PDF by clicking the link provided in the middle of this blog post.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Solve exam-level Series Questions for RRB NTPC exam. It will help you know the types and the difficulty level of the questions.<\/p>\n","protected":false},"author":25,"featured_media":190810,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-190809","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rrb-ntpc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Series Questions for RRB NTPC: Download Free PDF<\/title>\n<meta name=\"description\" content=\"Solve exam-level Series Questions for RRB NTPC exam. 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At PracticeMock I am a dedicated Government Job aspirant turned passionate Content writer &amp; Content creator. My blogs are a one-stop destination for accurate and comprehensive information on exams like SSC, Railways, and Other PSU Jobs. I am on a mission to provide you with all the details about these exams you need, conveniently in one place. I hope you will like my writing.","sameAs":["https:\/\/www.practicemock.com\/blog\/"],"url":"https:\/\/www.practicemock.com\/blog\/author\/abhishek-jatariya\/"},{"@type":"Question","@id":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043062600","position":1,"url":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043062600","name":"Is the Series topic difficult in RRB NTPC?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. It ranges from Easy to Moderate. The patterns are usually standard (squares, cubes, addition).","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043071883","position":2,"url":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043071883","name":"How many Series questions can I expect?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"You can expect around 3 to 5 questions in the General Intelligence and Reasoning section.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043083670","position":3,"url":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043083670","name":"What is the best trick for Number Series?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Check the gap (difference) between numbers first. If the gap increases slowly, it is an addition. If it increases very fast, it is multiplication.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043096956","position":4,"url":"https:\/\/www.practicemock.com\/blog\/series-questions-for-rrb-ntpc\/#faq-question-1766043096956","name":"Where can I download the free PDF?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"You can download the free, exam-level PDF by clicking the link provided in the middle of this blog post.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"uagb_featured_image_src":{"full":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",1200,675,false],"thumbnail":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",150,84,false],"medium":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",300,169,false],"medium_large":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",640,360,false],"large":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",640,360,false],"1536x1536":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",1200,675,false],"2048x2048":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",1200,675,false],"web-stories-poster-portrait":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",640,360,false],"web-stories-publisher-logo":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",96,54,false],"web-stories-thumbnail":["https:\/\/www.practicemock.com\/blog\/wp-content\/uploads\/2025\/12\/New-FI-Templates-2025-12-18T130223.385.png",150,84,false]},"uagb_author_info":{"display_name":"Abhishek Jatariya","author_link":"https:\/\/www.practicemock.com\/blog\/author\/abhishek-jatariya\/"},"uagb_comment_info":1,"uagb_excerpt":"Solve exam-level Series Questions for RRB NTPC exam. 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