Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 896 · 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 ₹10000 for 3 years is ₹1800. What is the rate per year? (a) 18% (b) 5% (c) 7% (d) 6%
2. 2.In how many years will ₹1500 earn ₹360 simple interest at 12% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
3. 3.The simple interest on ₹7000 for 4 years is ₹3360. What is the rate per year? (a) 48% (b) 11% (c) 12% (d) 13%
4. 4.In how many years will ₹7000 earn ₹2800 simple interest at 10% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
5. 5.₹4000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹4320 (b) ₹5280 (c) ₹960 (d) ₹4960
6. 6.What is the simple interest on ₹7000 at 7% per year for 3 years? (a) ₹1960 (b) ₹8470 (c) ₹1470 (d) ₹490
7. 7.The simple interest on ₹5000 for 2 years is ₹800. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 16%
8. 8.₹6000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹6720 (c) ₹8880 (d) ₹9600
9. 9.What is the simple interest on ₹1500 at 10% per year for 4 years? (a) ₹600 (b) ₹150 (c) ₹2100 (d) ₹750
10. 10.In how many years will ₹9000 earn ₹360 simple interest at 2% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
11. 11.In how many years will ₹2500 earn ₹1375 simple interest at 11% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
12. 12.What is the simple interest on ₹2000 at 9% per year for 3 years? (a) ₹540 (b) ₹2540 (c) ₹180 (d) ₹720
13. 13.What is the simple interest on ₹3000 at 8% per year for 5 years? (a) ₹1440 (b) ₹1200 (c) ₹240 (d) ₹4200
14. 14.The simple interest on ₹6000 for 3 years is ₹1080. What is the rate per year? (a) 5% (b) 18% (c) 7% (d) 6%
15. 15.What is the simple interest on ₹2500 at 4% per year for 3 years? (a) ₹300 (b) ₹100 (c) ₹400 (d) ₹2800
16. 16.₹3000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹3300 (b) ₹4500 (c) ₹4800 (d) ₹1500
17. 17.What is the simple interest on ₹4500 at 7% per year for 4 years? (a) ₹5760 (b) ₹1575 (c) ₹315 (d) ₹1260
18. 18.What is the simple interest on ₹9500 at 3% per year for 3 years? (a) ₹855 (b) ₹10355 (c) ₹285 (d) ₹1140
19. 19.What is the simple interest on ₹9500 at 10% per year for 2 years? (a) ₹2850 (b) ₹11400 (c) ₹950 (d) ₹1900
20. 20.₹9500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹5225 (b) ₹10545 (c) ₹15770 (d) ₹14725
21. 21.The simple interest on ₹7500 for 2 years is ₹1050. What is the rate per year? (a) 8% (b) 14% (c) 7% (d) 6%
22. 22.₹4500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹4950 (b) ₹4590 (c) ₹450 (d) ₹5040
23. 23.In how many years will ₹1500 earn ₹150 simple interest at 5% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
24. 24.The simple interest on ₹8500 for 3 years is ₹2295. What is the rate per year? (a) 10% (b) 27% (c) 9% (d) 8%
25. 25.In how many years will ₹3500 earn ₹735 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
26. 26.₹8000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹8480 (b) ₹9920 (c) ₹1440 (d) ₹9440
27. 27.₹9500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1520 (b) ₹11780 (c) ₹10260 (d) ₹11020
28. 28.₹1500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1860 (b) ₹1770 (c) ₹270 (d) ₹1590
29. 29.₹2500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹150 (b) ₹2700 (c) ₹2650 (d) ₹2550
30. 30.₹9000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹540 (b) ₹9540 (c) ₹9270 (d) ₹9810
31. 31.What is the simple interest on ₹2000 at 6% per year for 5 years? (a) ₹120 (b) ₹2600 (c) ₹720 (d) ₹600
32. 32.₹1500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1920 (b) ₹420 (c) ₹1605 (d) ₹2025
33. 33.What is the simple interest on ₹3500 at 3% per year for 5 years? (a) ₹525 (b) ₹105 (c) ₹630 (d) ₹4025
34. 34.₹7000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹8960 (b) ₹9450 (c) ₹7490 (d) ₹1960
35. 35.In how many years will ₹9500 earn ₹4750 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
36. 36.In how many years will ₹8500 earn ₹1530 simple interest at 9% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
37. 37.What is the simple interest on ₹9500 at 6% per year for 2 years? (a) ₹1140 (b) ₹570 (c) ₹1710 (d) ₹10640
38. 38.What is the simple interest on ₹4500 at 5% per year for 3 years? (a) ₹675 (b) ₹900 (c) ₹225 (d) ₹5175
39. 39.₹3000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹3600 (b) ₹3300 (c) ₹3900 (d) ₹600
40. 40.What is the simple interest on ₹9000 at 6% per year for 2 years? (a) ₹1080 (b) ₹540 (c) ₹10080 (d) ₹1620

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