Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 46 · 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.₹9500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹12160 (b) ₹2660 (c) ₹10165 (d) ₹12825
2. 2.₹1000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹280 (b) ₹1350 (c) ₹1280 (d) ₹1070
3. 3.₹4000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6200 (b) ₹2200 (c) ₹4440 (d) ₹6640
4. 4.What is the simple interest on ₹2500 at 7% per year for 5 years? (a) ₹1050 (b) ₹875 (c) ₹175 (d) ₹3375
5. 5.In how many years will ₹10000 earn ₹400 simple interest at 2% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
6. 6.In how many years will ₹4000 earn ₹1920 simple interest at 12% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
7. 7.What is the simple interest on ₹2500 at 3% per year for 4 years? (a) ₹375 (b) ₹300 (c) ₹75 (d) ₹2800
8. 8.The simple interest on ₹2500 for 3 years is ₹900. What is the rate per year? (a) 36% (b) 13% (c) 12% (d) 11%
9. 9.In how many years will ₹3500 earn ₹210 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
10. 10.In how many years will ₹7000 earn ₹1680 simple interest at 12% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
11. 11.₹2500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹550 (b) ₹2775 (c) ₹3325 (d) ₹3050
12. 12.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
13. 13.₹1500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹2175 (b) ₹1635 (c) ₹2040 (d) ₹540
14. 14.The simple interest on ₹4000 for 2 years is ₹320. What is the rate per year? (a) 8% (b) 5% (c) 3% (d) 4%
15. 15.In how many years will ₹8000 earn ₹1440 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
16. 16.₹4000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹4800 (b) ₹4200 (c) ₹800 (d) ₹5000
17. 17.₹6000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹6360 (b) ₹8160 (c) ₹1800 (d) ₹7800
18. 18.What is the simple interest on ₹3500 at 7% per year for 2 years? (a) ₹735 (b) ₹245 (c) ₹490 (d) ₹3990
19. 19.What is the simple interest on ₹7000 at 4% per year for 3 years? (a) ₹1120 (b) ₹840 (c) ₹280 (d) ₹7840
20. 20.In how many years will ₹8000 earn ₹720 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
21. 21.In how many years will ₹2500 earn ₹150 simple interest at 2% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
22. 22.The simple interest on ₹8500 for 2 years is ₹510. What is the rate per year? (a) 6% (b) 2% (c) 4% (d) 3%
23. 23.The simple interest on ₹10000 for 2 years is ₹1400. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 14%
24. 24.The simple interest on ₹1000 for 4 years is ₹320. What is the rate per year? (a) 9% (b) 8% (c) 32% (d) 7%
25. 25.₹5500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹5940 (b) ₹7700 (c) ₹8140 (d) ₹2200
26. 26.The simple interest on ₹2500 for 3 years is ₹525. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 21%
27. 27.₹3500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹4970 (b) ₹4725 (c) ₹1225 (d) ₹3745
28. 28.What is the simple interest on ₹8000 at 8% per year for 4 years? (a) ₹2560 (b) ₹10560 (c) ₹640 (d) ₹3200
29. 29.In how many years will ₹3500 earn ₹525 simple interest at 3% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
30. 30.₹7500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹12000 (b) ₹8400 (c) ₹3600 (d) ₹11100
31. 31.The simple interest on ₹7000 for 2 years is ₹1400. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 20%
32. 32.What is the simple interest on ₹5500 at 3% per year for 3 years? (a) ₹165 (b) ₹660 (c) ₹495 (d) ₹5995
33. 33.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
34. 34.In how many years will ₹8000 earn ₹1600 simple interest at 10% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
35. 35.₹9500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹10260 (b) ₹570 (c) ₹9690 (d) ₹10070
36. 36.What is the simple interest on ₹8500 at 9% per year for 5 years? (a) ₹3825 (b) ₹765 (c) ₹4590 (d) ₹12325
37. 37.₹10000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3600 (b) ₹14500 (c) ₹13600 (d) ₹10900
38. 38.In how many years will ₹2500 earn ₹500 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
39. 39.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
40. 40.The simple interest on ₹6000 for 2 years is ₹840. What is the rate per year? (a) 7% (b) 8% (c) 6% (d) 14%

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