Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 135 · 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.₹7000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8680 (b) ₹7280 (c) ₹1400 (d) ₹8400
2. 2.In how many years will ₹5500 earn ₹1760 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
3. 3.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹400 (b) ₹2400 (c) ₹2600 (d) ₹2200
4. 4.In how many years will ₹3000 earn ₹660 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
5. 5.₹6000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹6180 (b) ₹6540 (c) ₹540 (d) ₹6720
6. 6.₹2500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3750 (b) ₹1000 (c) ₹2750 (d) ₹3500
7. 7.₹3000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹120 (b) ₹3060 (c) ₹3180 (d) ₹3120
8. 8.₹9500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹12160 (b) ₹2660 (c) ₹10165 (d) ₹12825
9. 9.The simple interest on ₹3000 for 2 years is ₹300. What is the rate per year? (a) 6% (b) 10% (c) 5% (d) 4%
10. 10.₹8500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹9010 (b) ₹11560 (c) ₹2550 (d) ₹11050
11. 11.In how many years will ₹1000 earn ₹160 simple interest at 4% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
12. 12.₹8000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8320 (b) ₹8160 (c) ₹8480 (d) ₹320
13. 13.The simple interest on ₹8000 for 2 years is ₹480. What is the rate per year? (a) 6% (b) 3% (c) 4% (d) 2%
14. 14.₹4000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4360 (b) ₹720 (c) ₹5080 (d) ₹4720
15. 15.The simple interest on ₹8500 for 2 years is ₹340. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 4%
16. 16.₹2000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹180 (b) ₹2240 (c) ₹2180 (d) ₹2060
17. 17.In how many years will ₹5500 earn ₹825 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
18. 18.₹8500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹8670 (b) ₹9350 (c) ₹9520 (d) ₹850
19. 19.The simple interest on ₹2500 for 5 years is ₹1000. What is the rate per year? (a) 7% (b) 40% (c) 8% (d) 9%
20. 20.In how many years will ₹4500 earn ₹2160 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
21. 21.₹5500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹9460 (b) ₹8800 (c) ₹3300 (d) ₹6160
22. 22.What is the simple interest on ₹2500 at 10% per year for 2 years? (a) ₹250 (b) ₹750 (c) ₹3000 (d) ₹500
23. 23.The simple interest on ₹7500 for 5 years is ₹2250. What is the rate per year? (a) 30% (b) 7% (c) 6% (d) 5%
24. 24.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
25. 25.In how many years will ₹10000 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
26. 26.What is the simple interest on ₹9500 at 6% per year for 5 years? (a) ₹3420 (b) ₹12350 (c) ₹570 (d) ₹2850
27. 27.What is the simple interest on ₹2500 at 8% per year for 4 years? (a) ₹3300 (b) ₹1000 (c) ₹800 (d) ₹200
28. 28.In how many years will ₹7500 earn ₹1125 simple interest at 3% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
29. 29.In how many years will ₹8000 earn ₹3200 simple interest at 8% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
30. 30.The simple interest on ₹9000 for 5 years is ₹900. What is the rate per year? (a) 2% (b) 1% (c) 10% (d) 3%
31. 31.What is the simple interest on ₹1500 at 12% per year for 3 years? (a) ₹180 (b) ₹720 (c) ₹2040 (d) ₹540
32. 32.The simple interest on ₹5000 for 5 years is ₹2250. What is the rate per year? (a) 8% (b) 45% (c) 10% (d) 9%
33. 33.What is the simple interest on ₹8500 at 4% per year for 2 years? (a) ₹1020 (b) ₹9180 (c) ₹680 (d) ₹340
34. 34.What is the simple interest on ₹3000 at 5% per year for 5 years? (a) ₹3750 (b) ₹150 (c) ₹900 (d) ₹750
35. 35.What is the simple interest on ₹10000 at 10% per year for 5 years? (a) ₹6000 (b) ₹1000 (c) ₹5000 (d) ₹15000
36. 36.In how many years will ₹7000 earn ₹1050 simple interest at 5% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
37. 37.What is the simple interest on ₹3500 at 7% per year for 2 years? (a) ₹3990 (b) ₹735 (c) ₹245 (d) ₹490
38. 38.₹3000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹3090 (b) ₹3270 (c) ₹3360 (d) ₹270
39. 39.The simple interest on ₹9500 for 2 years is ₹1900. What is the rate per year? (a) 9% (b) 20% (c) 10% (d) 11%
40. 40.In how many years will ₹6500 earn ₹2860 simple interest at 11% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years

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