Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 632 · 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.₹1000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1090 (b) ₹450 (c) ₹1540 (d) ₹1450
2. 2.In how many years will ₹6500 earn ₹520 simple interest at 2% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
3. 3.The simple interest on ₹9000 for 3 years is ₹1350. What is the rate per year? (a) 4% (b) 5% (c) 15% (d) 6%
4. 4.What is the simple interest on ₹1500 at 3% per year for 5 years? (a) ₹45 (b) ₹270 (c) ₹1725 (d) ₹225
5. 5.What is the simple interest on ₹8500 at 4% per year for 3 years? (a) ₹1360 (b) ₹340 (c) ₹1020 (d) ₹9520
6. 6.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 3% (b) 4% (c) 12% (d) 5%
7. 7.The simple interest on ₹5000 for 4 years is ₹800. What is the rate per year? (a) 16% (b) 5% (c) 4% (d) 3%
8. 8.What is the simple interest on ₹7000 at 7% per year for 3 years? (a) ₹1960 (b) ₹8470 (c) ₹1470 (d) ₹490
9. 9.₹5500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹6820 (b) ₹1320 (c) ₹7260 (d) ₹5940
10. 10.The simple interest on ₹3500 for 2 years is ₹560. What is the rate per year? (a) 16% (b) 9% (c) 8% (d) 7%
11. 11.The simple interest on ₹4000 for 5 years is ₹2200. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 55%
12. 12.What is the simple interest on ₹3500 at 5% per year for 4 years? (a) ₹175 (b) ₹4200 (c) ₹700 (d) ₹875
13. 13.The simple interest on ₹5000 for 3 years is ₹600. What is the rate per year? (a) 12% (b) 5% (c) 4% (d) 3%
14. 14.What is the simple interest on ₹9500 at 12% per year for 5 years? (a) ₹5700 (b) ₹1140 (c) ₹6840 (d) ₹15200
15. 15.₹7500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1125 (b) ₹7725 (c) ₹8625 (d) ₹8850
16. 16.The simple interest on ₹4500 for 4 years is ₹1080. What is the rate per year? (a) 6% (b) 24% (c) 7% (d) 5%
17. 17.In how many years will ₹3000 earn ₹900 simple interest at 6% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
18. 18.The simple interest on ₹9500 for 3 years is ₹3420. What is the rate per year? (a) 13% (b) 36% (c) 12% (d) 11%
19. 19.₹9000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹10620 (c) ₹10080 (d) ₹9540
20. 20.What is the simple interest on ₹8500 at 2% per year for 5 years? (a) ₹850 (b) ₹170 (c) ₹1020 (d) ₹9350
21. 21.The simple interest on ₹7000 for 4 years is ₹2240. What is the rate per year? (a) 7% (b) 32% (c) 8% (d) 9%
22. 22.The simple interest on ₹2000 for 2 years is ₹200. What is the rate per year? (a) 5% (b) 4% (c) 10% (d) 6%
23. 23.In how many years will ₹1500 earn ₹225 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
24. 24.The simple interest on ₹10000 for 2 years is ₹2400. What is the rate per year? (a) 12% (b) 24% (c) 13% (d) 11%
25. 25.The simple interest on ₹7000 for 5 years is ₹1050. What is the rate per year? (a) 3% (b) 15% (c) 2% (d) 4%
26. 26.The simple interest on ₹8000 for 2 years is ₹320. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 4%
27. 27.₹6000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹6660 (b) ₹7320 (c) ₹1320 (d) ₹7980
28. 28.₹9000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹10350 (b) ₹10080 (c) ₹9270 (d) ₹1080
29. 29.The simple interest on ₹5500 for 5 years is ₹1375. What is the rate per year? (a) 25% (b) 5% (c) 6% (d) 4%
30. 30.In how many years will ₹4000 earn ₹840 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
31. 31.In how many years will ₹5500 earn ₹1925 simple interest at 7% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
32. 32.In how many years will ₹2500 earn ₹375 simple interest at 5% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
33. 33.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
34. 34.What is the simple interest on ₹10000 at 12% per year for 3 years? (a) ₹3600 (b) ₹1200 (c) ₹13600 (d) ₹4800
35. 35.In how many years will ₹1500 earn ₹750 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
36. 36.In how many years will ₹8000 earn ₹800 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
37. 37.What is the simple interest on ₹9000 at 9% per year for 5 years? (a) ₹13050 (b) ₹810 (c) ₹4050 (d) ₹4860
38. 38.What is the simple interest on ₹7000 at 12% per year for 4 years? (a) ₹840 (b) ₹10360 (c) ₹3360 (d) ₹4200
39. 39.₹9000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3600 (b) ₹9720 (c) ₹13320 (d) ₹12600
40. 40.₹1000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹1320 (c) ₹320 (d) ₹1400

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