100+ Arithmetic Questions for NIACL AO 2025, Download Free PDF

Arithmetic is one of the most important parts of the NIACL AO 2025 exam, both in Prelims and Mains, particularly under the Quantitative Aptitude section. Mastering arithmetic is essential because it not only strengthens your calculation speed but also directly impacts your accuracy and overall score. In this article, we are providing 100+ Arithmetic Questions for NIACL AO 2025 based on the latest exam pattern, previous year trends, and difficulty levels. You can also download the free PDF at the end of this article to practice offline.

Importance of Arithmetic in NIACL AO 2025

Arithmetic holds a high weightage in NIACL AO, especially in the Mains phase, where word problems and application-based questions dominate the paper. Topics like Profit & Loss, Time & Work, Simple & Compound Interest, Partnership, Ratio & Proportion, Mixture & Allegation, Speed-Time-Distance, and Mensuration are almost always asked.

Why you should focus on Arithmetic:

• High Scoring: Concept-based and formula-driven.
• Repeatable Patterns: Many questions follow a standard logical pattern.
• Foundation for DI: Data Interpretation often involves arithmetic calculations.
• Direct Impact on Cut-off: Accuracy here can make or break your selection chances.

NIACL AO 2025- Quantitative Aptitude Pattern

• In Prelims, arithmetic questions are usually 5–10 in number, mixed with simplification, approximation, and DI.
• In Mains, expect 15–20 arithmetic-based word problems in direct form or as part of a DI set.

Topic-Wise Weightage of Arithmetic Questions (Based on Previous Years)

100+ Arithmetic Questions for NIACL AO 2025 – Topic-Wise

Below is a topic-wise compilation of sample questions. The full set of 100+ questions with solutions is available in the downloadable PDF.

Question 1: A vessel contains 200 litres mixture of water and milk mixed in the ratio of 4:1 respectively. 70 litres of mixture is added which contains water and milk in the ratio of 2:5 respectively. Find the difference in the amount of water and milk present in the vessel finally after adding 70 litres of mixture to the vessel. 

A) 90 litres 

B) 100 litres 

C) 60 litres 

D) 80 litres 

E) 70 litres 

Question 2: Mixture A of milk and water contains 60% milk. If another mixture B of 84 litres containing milk and water in the ratio of 7:5, respectively is poured in mixture A such that the quantity of milk in the resultant mixture becomes 97 litres, then find the quantity of mixture A initially. 

A) 80 litres 

B) 90 litres 

C) 70 litres 

D) 100 litres 

E) None of these 

Question 3: A mixture of milk and water contains 40% water. ‘x’ litres of water is added to the mixture, then the quantity of milk becomes at least 22 litres more than water in the resultant mixture. If quantity of water in the mixture initially was 74 litres, then what can be the possible value of ‘x’? 

A) 16 

B) 14

C) 17 

D) 20 

E) 18

Question 4: The ratio of water and milk in a container is 2:9, respectively. 22 litres of mixture is taken out from the container and 10 litres of water is added to mixture. Again, 25% of mixture is taken out such that 57 litres of mixture is left in the container. Find the amount of water present initially. 

A) 18 litres 

B) 20 litres 

C) 16 litres 

D) 12 litres 

E) 15 litres

Question 5: 560 litres of a mixture contains milk and water in the ratio of 4:3, respectively. After addition of some amount of water to it, the ratio of milk to water in resultant mixture becomes 1:1, respectively. Find the amount of water added to mixture. 

A) 80 litres 

B) 60 litres 

C) 40 litres 

D) 20 litres 

E) None of these

Arithmetic NIACL AO 2025 PDF Link

Download 200+ Arithmetic Questions for NIACL AO 2025

Strategy to Prepare for Arithmetic for NIACL AO 2025

Step 1: Learn Concepts & Formulas

Before diving into questions, make sure you have a formula sheet ready for quick revision.
Example:

• Profit % = (Profit / Cost Price) × 100
  
• SI = (P × R × T) / 100
  
• CI = P × (1 + R/100)ⁿ – P
  
• Time & Work Formula: Work = Time × Rate
  

Step 2: Practice Topic-Wise

Don’t mix topics in the beginning. Focus on one concept, then move to the next.

Step 3: Solve Previous Year Papers

Solve the previous year’s paper to get an idea of the type of questions asked in the examination.

Step 4: Improve Calculation Speed

Use Vedic Maths tricks, approximation, and mental math to save precious seconds.

Step 5: Attempt Mock Tests

Simulate exam conditions to build time management skills.

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Disclaimer: The arithmetic questions, solutions, and strategies provided are compiled from expert references and past exam trends. They are intended for practice and guidance only, not official NIACL AO exam content. Actual exam questions may differ. Candidates should always verify details through official NIACL notices before relying on them.

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