Quantitative aptitude carries significant weight in SSC, RRB, UPSC CSAT and banking exams, and the most reliable way to improve is regular timed practice with worked solutions. This post explains why the section matters, how to practise it well, and gives you a 10-question mixed practice set with step-by-step solutions to test yourself.
Why quantitative aptitude matters
- It appears in nearly every major competitive exam, usually with a strict time limit.
- Questions test calculation speed, accuracy and problem-solving under pressure.
- A strong quant score often separates candidates with otherwise similar totals.
How to practise effectively
- Solve topic-wise sets first to build concepts, then move to mixed sets like the one below.
- Always attempt questions under a timer; speed only improves when it is measured.
- Review every wrong answer and note the exact step where you went wrong.
- Track weak topics and revisit them weekly rather than re-practising your strengths.
Practice set: 10 mixed questions
Q1. A number increased by 20% becomes 240. Find the original number.
a) 180 b) 200 c) 210 d) 220
Let the number be x. Then 1.2x = 240, so x = 240 ÷ 1.2 = 200. Answer: b) 200
Q2. Rs 720 is divided among three people in the ratio 2 : 3 : 4. What is the largest share?
a) Rs 160 b) Rs 240 c) Rs 320 d) Rs 360
Total parts = 2 + 3 + 4 = 9. One part = 720 ÷ 9 = 80. Largest share = 4 × 80 = Rs 320. Answer: c) Rs 320
Q3. The average of 5 numbers is 27. If the number 35 is removed, what is the new average?
a) 24 b) 25 c) 26 d) 27
Sum of 5 numbers = 5 × 27 = 135. After removing 35, sum = 100 over 4 numbers. New average = 100 ÷ 4 = 25. Answer: b) 25
Q4. Find the simple interest on Rs 5,000 at 8% per annum for 3 years.
a) Rs 1,000 b) Rs 1,100 c) Rs 1,200 d) Rs 1,400
SI = (P × R × T) ÷ 100 = (5000 × 8 × 3) ÷ 100 = Rs 1,200. Answer: c) Rs 1,200
Q5. An article costing Rs 480 is sold at a profit of 15%. Find the selling price.
a) Rs 540 b) Rs 546 c) Rs 552 d) Rs 560
SP = 480 × 1.15 = 480 + 72 = Rs 552. Answer: c) Rs 552
Q6. A can do a piece of work in 12 days and B in 24 days. Working together, how many days will they take?
a) 6 b) 8 c) 9 d) 10
One-day work = 1/12 + 1/24 = 2/24 + 1/24 = 3/24 = 1/8. Together they finish in 8 days. Answer: b) 8 days
Q7. A 180 m long train crosses a pole in 9 seconds. Find its speed in km/h.
a) 60 km/h b) 66 km/h c) 72 km/h d) 80 km/h
Speed = 180 ÷ 9 = 20 m/s. In km/h: 20 × 18/5 = 72 km/h. Answer: c) 72 km/h
Q8. What is the largest three-digit number divisible by 8?
a) 990 b) 992 c) 996 d) 998
999 ÷ 8 = 124 remainder 7, so the largest multiple of 8 below 1000 is 124 × 8 = 992. Answer: b) 992
Q9. Find the compound interest on Rs 10,000 at 10% per annum for 2 years, compounded annually.
a) Rs 2,000 b) Rs 2,100 c) Rs 2,200 d) Rs 2,400
Amount = 10000 × 1.1 × 1.1 = Rs 12,100. CI = 12,100 − 10,000 = Rs 2,100. Answer: b) Rs 2,100
Q10. The perimeter of a rectangle is 40 cm and its length is 12 cm. Find its area.
a) 80 sq cm b) 88 sq cm c) 96 sq cm d) 108 sq cm
2(l + b) = 40, so l + b = 20 and b = 20 − 12 = 8 cm. Area = 12 × 8 = 96 sq cm. Answer: c) 96 sq cm
What to do after this set
- Score yourself honestly and note which topics cost you time or marks.
- Revise the formula or shortcut behind each mistake before your next set.
- Repeat mixed sets weekly so no topic goes stale.
When you are ready for exam-length practice, attempt the quantitative aptitude sectionals and full mock tests on Pareeksha.
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