Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 102 · 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.The simple interest on ₹2500 for 2 years is ₹250. What is the rate per year? (a) 4% (b) 10% (c) 6% (d) 5%
2. 2.In how many years will ₹6500 earn ₹3575 simple interest at 11% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
3. 3.What is the simple interest on ₹8000 at 7% per year for 3 years? (a) ₹1680 (b) ₹560 (c) ₹9680 (d) ₹2240
4. 4.The simple interest on ₹5500 for 3 years is ₹1320. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 24%
5. 5.₹10000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹10900 (b) ₹3600 (c) ₹14500 (d) ₹13600
6. 6.In how many years will ₹7000 earn ₹1050 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
7. 7.What is the simple interest on ₹2500 at 5% per year for 5 years? (a) ₹3125 (b) ₹750 (c) ₹625 (d) ₹125
8. 8.The simple interest on ₹10000 for 4 years is ₹4800. What is the rate per year? (a) 48% (b) 13% (c) 11% (d) 12%
9. 9.What is the simple interest on ₹9500 at 8% per year for 3 years? (a) ₹11780 (b) ₹760 (c) ₹3040 (d) ₹2280
10. 10.₹3000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹450 (b) ₹3540 (c) ₹3090 (d) ₹3450
11. 11.What is the simple interest on ₹9500 at 12% per year for 4 years? (a) ₹5700 (b) ₹1140 (c) ₹14060 (d) ₹4560
12. 12.₹4000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹4160 (b) ₹4320 (c) ₹320 (d) ₹4480
13. 13.In how many years will ₹9500 earn ₹950 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
14. 14.What is the simple interest on ₹1000 at 12% per year for 5 years? (a) ₹720 (b) ₹1600 (c) ₹120 (d) ₹600
15. 15.In how many years will ₹2500 earn ₹375 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
16. 16.What is the simple interest on ₹4000 at 11% per year for 2 years? (a) ₹1320 (b) ₹4880 (c) ₹880 (d) ₹440
17. 17.What is the simple interest on ₹3000 at 10% per year for 4 years? (a) ₹4200 (b) ₹1500 (c) ₹300 (d) ₹1200
18. 18.₹8000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹8720 (b) ₹2160 (c) ₹10160 (d) ₹10880
19. 19.What is the simple interest on ₹7500 at 12% per year for 3 years? (a) ₹900 (b) ₹10200 (c) ₹3600 (d) ₹2700
20. 20.In how many years will ₹4500 earn ₹450 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
21. 21.In how many years will ₹9500 earn ₹570 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
22. 22.The simple interest on ₹8000 for 5 years is ₹4400. What is the rate per year? (a) 55% (b) 12% (c) 10% (d) 11%
23. 23.₹5500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹440 (b) ₹6050 (c) ₹5610 (d) ₹5940
24. 24.In how many years will ₹9500 earn ₹3325 simple interest at 7% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
25. 25.The simple interest on ₹5500 for 3 years is ₹1650. What is the rate per year? (a) 10% (b) 9% (c) 30% (d) 11%
26. 26.The simple interest on ₹4500 for 5 years is ₹1125. What is the rate per year? (a) 4% (b) 6% (c) 25% (d) 5%
27. 27.₹3000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹3960 (b) ₹4200 (c) ₹3240 (d) ₹960
28. 28.The simple interest on ₹2500 for 3 years is ₹375. What is the rate per year? (a) 5% (b) 6% (c) 4% (d) 15%
29. 29.In how many years will ₹5000 earn ₹1000 simple interest at 4% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
30. 30.What is the simple interest on ₹2000 at 2% per year for 5 years? (a) ₹240 (b) ₹40 (c) ₹2200 (d) ₹200
31. 31.The simple interest on ₹9500 for 2 years is ₹380. What is the rate per year? (a) 4% (b) 1% (c) 3% (d) 2%
32. 32.In how many years will ₹5500 earn ₹1815 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
33. 33.The simple interest on ₹10000 for 3 years is ₹900. What is the rate per year? (a) 2% (b) 9% (c) 4% (d) 3%
34. 34.₹7000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9450 (b) ₹2450 (c) ₹9940 (d) ₹7490
35. 35.What is the simple interest on ₹9000 at 4% per year for 3 years? (a) ₹360 (b) ₹1080 (c) ₹1440 (d) ₹10080
36. 36.₹9000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹3150 (b) ₹12150 (c) ₹9630 (d) ₹12780
37. 37.The simple interest on ₹5000 for 2 years is ₹1200. What is the rate per year? (a) 12% (b) 11% (c) 24% (d) 13%
38. 38.In how many years will ₹1000 earn ₹90 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
39. 39.What is the simple interest on ₹1500 at 7% per year for 3 years? (a) ₹420 (b) ₹105 (c) ₹315 (d) ₹1815
40. 40.What is the simple interest on ₹5500 at 4% per year for 3 years? (a) ₹660 (b) ₹6160 (c) ₹880 (d) ₹220

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