Top 20 Practice Questions for Quantitative Aptitude: Top 20 Practice Questions for Quantitative Aptitude is what every competitive exam aspirant looks for while preparing for exams like IBPS, SSC, RRB, and campus placements. These questions are designed to test both your concept clarity and calculation skills under time pressure.
In this article, you’ll get 20 handpicked practice questions from the most important topics of quantitative aptitude, with simple and clear solutions. Each question reflects the latest exam trends, helping you improve your speed, accuracy, and confidence.
Arithmetic Questions
1. A man buys a pen for ₹150 and sells it for ₹180. What is the profit percentage?
Solution:
Profit = 180 – 150 = ₹30
Profit% = (30/150) × 100 = 20%
2. If the cost price of 10 apples is equal to the selling price of 8 apples, what is the profit percentage?
Solution:
CP of 10 = SP of 8 → SP = CP × (10/8) = 1.25 CP
Profit% = 25%
3. A train runs 600 km in 5 hours. What is its speed?
Solution:
Speed = Distance/Time = 600/5 = 120 km/h
4. A person spends 80% of his income. If his income is ₹40,000, how much does he save?
Solution:
Savings = 20% of 40,000 = 0.20 × 40,000 = ₹8,000
5. A can do a job in 10 days, and B in 15 days. How many days will they take together?
Solution:
1 day work = (1/10 + 1/15) = (3+2)/30 = 5/30 = 1/6
Together, they take 6 days
Percentage & Ratio
6. What is 25% of 640?
Solution:
= 0.25 × 640 = 160
7. If A : B = 3 : 4 and B : C = 2 : 5, what is A : C?
Solution:
A : B = 3 : 4 → B = 4k
B : C = 2 : 5 → B = 2m
LCM of B = 4k = 2m → k = 1, m = 2
So, A : C = 3 : 10
8. A number increases by 20% and then decreases by 20%. What is the net change?
Solution:
Net% change = (20 – 20 – (20×20)/100) = -4%
4% decrease
Simplification
9. √(256) + 12 × 2 = ?
Solution:
16 + 24 = 40
10. 2.5% of 400 + 12.5% of 80 = ?
Solution:
(0.025 × 400) + (0.125 × 80) = 10 + 10 = 20
Time, Speed, Distance & Work
11. A car travels at 60 km/h for 2 hours, then 90 km/h for 3 hours. What is the average speed?
Solution:
Total distance = (60×2) + (90×3) = 120 + 270 = 390
Total time = 5 hrs
Average speed = 390/5 = 78 km/h
12. A pipe fills a tank in 4 hours, another empties it in 6 hours. How long to fill it together?
Solution:
Net 1 hour work = (1/4 – 1/6) = (3–2)/12 = 1/12
Time = 12 hours
Data Interpretation (Based on Simple Table)
13. If a company made ₹1,20,000 profit in January and ₹1,80,000 in February, what is the percentage increase?
Solution:
Increase = 60,000 → (60,000/1,20,000) × 100 = 50%
14. If average profit over 4 months is ₹1,50,000 and total is ₹6,00,000, what is the profit in each month?
Solution:
Average × 4 = Total → ₹1,50,000 × 4 = ₹6,00,000
Verified. So profit in each month = ₹1,50,000
Algebra & Number System
15. Solve: x² – 5x + 6 = 0
Solution:
Factor = (x–2)(x–3) → x = 2, 3
16. What is the smallest number divisible by 12, 15, and 20?
Solution:
LCM of 12,15,20 = 60
Profit & Loss + SI-CI
17. If selling price is ₹880 and profit is 10%, what is cost price?
Solution:
SP = 110% of CP → CP = 880 × 100 / 110 = ₹800
18. Find simple interest on ₹5000 for 2 years at 8% per annum.
Solution:
SI = (P×R×T)/100 = (5000×8×2)/100 = ₹800
Miscellaneous Word Problems
19. A sum doubles in 5 years at simple interest. What is the rate?
Solution:
If SI = P, then SI = P = (P×R×5)/100 → R = 20%
20. The average of 5 numbers is 48. If one number is 60, what is the sum of the other 4?
Solution:
Total = 48×5 = 240 → Other 4 = 240–60 = 180
FAQs
Q1. Are these questions enough for daily quant practice?
Yes, these top 20 practice questions for quantitative aptitude cover the most important topics for exams.
Q2. Should I solve similar questions daily?
Yes, try 20–30 new questions each day with a focus on speed and accuracy.
Q3. Where can I find more practice sets?
You can check platforms like Testbook, Oliveboard, or mock test books by RS Aggarwal and Arihant.
Q4. How much time should I take to solve 20 questions?
Ideally, 25–30 minutes with accuracy.
Q5. Are these questions suitable for SSC and banking exams?
Yes, these questions are relevant for IBPS, SSC, RRB, LIC, and even campus placement exams.
Final Thought:
Practicing the Top 20 Practice Questions for Quantitative Aptitude regularly is one of the smartest ways to prepare for exams. These questions help improve your problem-solving ability, speed, and confidence. Save this guide, share it with friends, and challenge yourself with new sets every day. Also, check out our other articles on mock test strategy and aptitude shortcuts to stay exam-ready.
