Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 53 · 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.What is the simple interest on ₹2000 at 9% per year for 4 years? (a) ₹720 (b) ₹2720 (c) ₹180 (d) ₹900
2. 2.₹8000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹8800 (b) ₹3200 (c) ₹12000 (d) ₹11200
3. 3.In how many years will ₹5000 earn ₹1000 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
4. 4.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 10% (b) 18% (c) 9% (d) 8%
5. 5.What is the simple interest on ₹10000 at 2% per year for 2 years? (a) ₹10400 (b) ₹600 (c) ₹200 (d) ₹400
6. 6.₹8000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹8880 (b) ₹13280 (c) ₹4400 (d) ₹12400
7. 7.In how many years will ₹7500 earn ₹450 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
8. 8.In how many years will ₹2500 earn ₹400 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
9. 9.₹9500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3420 (b) ₹13775 (c) ₹12920 (d) ₹10355
10. 10.The simple interest on ₹6000 for 4 years is ₹2640. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 44%
11. 11.The simple interest on ₹7500 for 4 years is ₹2100. What is the rate per year? (a) 7% (b) 6% (c) 28% (d) 8%
12. 12.In how many years will ₹2500 earn ₹1000 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
13. 13.₹9500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1520 (b) ₹11020 (c) ₹11400 (d) ₹9880
14. 14.The simple interest on ₹2000 for 3 years is ₹720. What is the rate per year? (a) 11% (b) 36% (c) 12% (d) 13%
15. 15.In how many years will ₹8000 earn ₹2640 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
16. 16.What is the simple interest on ₹9500 at 3% per year for 3 years? (a) ₹855 (b) ₹10355 (c) ₹1140 (d) ₹285
17. 17.The simple interest on ₹10000 for 2 years is ₹600. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 6%
18. 18.In how many years will ₹4500 earn ₹1800 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
19. 19.₹1000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹1040 (b) ₹160 (c) ₹1200 (d) ₹1160
20. 20.The simple interest on ₹5000 for 3 years is ₹300. What is the rate per year? (a) 1% (b) 2% (c) 6% (d) 3%
21. 21.In how many years will ₹4000 earn ₹240 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
22. 22.The simple interest on ₹4000 for 3 years is ₹720. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 18%
23. 23.What is the simple interest on ₹5500 at 10% per year for 4 years? (a) ₹550 (b) ₹2750 (c) ₹7700 (d) ₹2200
24. 24.In how many years will ₹9500 earn ₹570 simple interest at 3% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
25. 25.In how many years will ₹9000 earn ₹540 simple interest at 3% per year? (a) 2 years (b) 3 years (c) 4 years (d) 1 year
26. 26.₹2500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹100 (b) ₹2550 (c) ₹2600 (d) ₹2650
27. 27.In how many years will ₹7500 earn ₹3600 simple interest at 12% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
28. 28.In how many years will ₹8500 earn ₹4675 simple interest at 11% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
29. 29.In how many years will ₹6500 earn ₹2145 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
30. 30.What is the simple interest on ₹8000 at 10% per year for 2 years? (a) ₹800 (b) ₹1600 (c) ₹9600 (d) ₹2400
31. 31.The simple interest on ₹10000 for 2 years is ₹2200. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 22%
32. 32.₹9000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹12960 (b) ₹9990 (c) ₹2970 (d) ₹11970
33. 33.What is the simple interest on ₹10000 at 8% per year for 5 years? (a) ₹4800 (b) ₹4000 (c) ₹14000 (d) ₹800
34. 34.The simple interest on ₹3000 for 2 years is ₹480. What is the rate per year? (a) 9% (b) 16% (c) 7% (d) 8%
35. 35.What is the simple interest on ₹2000 at 4% per year for 5 years? (a) ₹2400 (b) ₹480 (c) ₹400 (d) ₹80
36. 36.What is the simple interest on ₹2500 at 3% per year for 4 years? (a) ₹300 (b) ₹375 (c) ₹75 (d) ₹2800
37. 37.₹6500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7670 (b) ₹7280 (c) ₹780 (d) ₹6890
38. 38.₹1500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1680 (b) ₹180 (c) ₹1740 (d) ₹1560
39. 39.What is the simple interest on ₹6500 at 6% per year for 5 years? (a) ₹2340 (b) ₹390 (c) ₹8450 (d) ₹1950
40. 40.In how many years will ₹2000 earn ₹1100 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years

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