Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 280 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹9450 (b) ₹11250 (c) ₹1800 (d) ₹10800
2. 2.In how many years will ₹8500 earn ₹680 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
3. 3.In how many years will ₹5500 earn ₹1375 simple interest at 5% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
4. 4.₹2000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹2200 (b) ₹2240 (c) ₹2040 (d) ₹200
5. 5.What is the simple interest on ₹10000 at 11% per year for 4 years? (a) ₹14400 (b) ₹1100 (c) ₹5500 (d) ₹4400
6. 6.The simple interest on ₹1500 for 3 years is ₹495. What is the rate per year? (a) 11% (b) 10% (c) 33% (d) 12%
7. 7.What is the simple interest on ₹2000 at 6% per year for 5 years? (a) ₹120 (b) ₹720 (c) ₹2600 (d) ₹600
8. 8.₹2500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹3850 (b) ₹2725 (c) ₹1125 (d) ₹3625
9. 9.What is the simple interest on ₹3000 at 10% per year for 2 years? (a) ₹900 (b) ₹3600 (c) ₹300 (d) ₹600
10. 10.What is the simple interest on ₹8500 at 3% per year for 4 years? (a) ₹255 (b) ₹9520 (c) ₹1275 (d) ₹1020
11. 11.In how many years will ₹9000 earn ₹3600 simple interest at 8% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
12. 12.₹4000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹4720 (b) ₹4240 (c) ₹480 (d) ₹4480
13. 13.The simple interest on ₹9000 for 5 years is ₹5400. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 60%
14. 14.In how many years will ₹3500 earn ₹2100 simple interest at 12% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
15. 15.The simple interest on ₹1500 for 3 years is ₹315. What is the rate per year? (a) 6% (b) 21% (c) 7% (d) 8%
16. 16.₹4500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹7740 (b) ₹2700 (c) ₹5040 (d) ₹7200
17. 17.In how many years will ₹9500 earn ₹3420 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
18. 18.₹7500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹10200 (b) ₹8175 (c) ₹2025 (d) ₹9525
19. 19.₹2500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹2900 (c) ₹300 (d) ₹2600
20. 20.In how many years will ₹7000 earn ₹1050 simple interest at 3% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
21. 21.In how many years will ₹5000 earn ₹800 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
22. 22.₹2000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2240 (b) ₹2180 (c) ₹2060 (d) ₹180
23. 23.The simple interest on ₹9500 for 4 years is ₹3420. What is the rate per year? (a) 8% (b) 36% (c) 9% (d) 10%
24. 24.What is the simple interest on ₹2500 at 2% per year for 5 years? (a) ₹300 (b) ₹50 (c) ₹2750 (d) ₹250
25. 25.What is the simple interest on ₹2000 at 12% per year for 5 years? (a) ₹3200 (b) ₹1200 (c) ₹240 (d) ₹1440
26. 26.What is the simple interest on ₹5000 at 2% per year for 4 years? (a) ₹500 (b) ₹100 (c) ₹5400 (d) ₹400
27. 27.₹3500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹210 (b) ₹3710 (c) ₹3605 (d) ₹3815
28. 28.The simple interest on ₹8500 for 3 years is ₹3060. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 36%
29. 29.₹8000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹960 (b) ₹9440 (c) ₹8960 (d) ₹8480
30. 30.What is the simple interest on ₹2000 at 2% per year for 2 years? (a) ₹80 (b) ₹120 (c) ₹40 (d) ₹2080
31. 31.The simple interest on ₹1000 for 3 years is ₹150. What is the rate per year? (a) 4% (b) 15% (c) 5% (d) 6%
32. 32.₹3500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3780 (b) ₹5180 (c) ₹1400 (d) ₹4900
33. 33.In how many years will ₹3500 earn ₹945 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
34. 34.₹2500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹3100 (b) ₹2650 (c) ₹600 (d) ₹3250
35. 35.₹9000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹9540 (b) ₹10620 (c) ₹11160 (d) ₹1620
36. 36.The simple interest on ₹4500 for 3 years is ₹540. What is the rate per year? (a) 5% (b) 3% (c) 12% (d) 4%
37. 37.What is the simple interest on ₹6000 at 12% per year for 4 years? (a) ₹8880 (b) ₹720 (c) ₹2880 (d) ₹3600
38. 38.What is the simple interest on ₹8500 at 5% per year for 4 years? (a) ₹2125 (b) ₹10200 (c) ₹1700 (d) ₹425
39. 39.₹4000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹560 (b) ₹4840 (c) ₹4560 (d) ₹4280
40. 40.In how many years will ₹2000 earn ₹120 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years

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