Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 227 · 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 ₹8500 for 5 years is ₹2550. What is the rate per year? (a) 30% (b) 5% (c) 6% (d) 7%
2. 2.The simple interest on ₹9500 for 3 years is ₹1995. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 21%
3. 3.What is the simple interest on ₹6000 at 7% per year for 2 years? (a) ₹1260 (b) ₹840 (c) ₹6840 (d) ₹420
4. 4.The simple interest on ₹9000 for 5 years is ₹5400. What is the rate per year? (a) 60% (b) 11% (c) 12% (d) 13%
5. 5.The simple interest on ₹3000 for 2 years is ₹240. What is the rate per year? (a) 3% (b) 8% (c) 5% (d) 4%
6. 6.₹4000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹4600 (b) ₹4120 (c) ₹480 (d) ₹4480
7. 7.₹9500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹10925 (b) ₹10450 (c) ₹9975 (d) ₹950
8. 8.₹3500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹3850 (b) ₹4025 (c) ₹350 (d) ₹3675
9. 9.₹1500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹2310 (b) ₹2175 (c) ₹1635 (d) ₹675
10. 10.₹1500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹135 (b) ₹1680 (c) ₹1545 (d) ₹1635
11. 11.What is the simple interest on ₹9000 at 6% per year for 4 years? (a) ₹2160 (b) ₹2700 (c) ₹540 (d) ₹11160
12. 12.The simple interest on ₹1500 for 3 years is ₹135. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 9%
13. 13.In how many years will ₹2000 earn ₹540 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
14. 14.In how many years will ₹3000 earn ₹450 simple interest at 5% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
15. 15.₹4000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4200 (b) ₹4400 (c) ₹4600 (d) ₹400
16. 16.In how many years will ₹4000 earn ₹240 simple interest at 3% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
17. 17.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹210 (b) ₹105 (c) ₹315 (d) ₹3710
18. 18.In how many years will ₹3500 earn ₹280 simple interest at 4% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
19. 19.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
20. 20.What is the simple interest on ₹8500 at 4% per year for 5 years? (a) ₹340 (b) ₹10200 (c) ₹2040 (d) ₹1700
21. 21.What is the simple interest on ₹5000 at 5% per year for 5 years? (a) ₹250 (b) ₹1250 (c) ₹1500 (d) ₹6250
22. 22.The simple interest on ₹2000 for 5 years is ₹1000. What is the rate per year? (a) 9% (b) 10% (c) 50% (d) 11%
23. 23.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
24. 24.₹7500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹11250 (b) ₹8250 (c) ₹10500 (d) ₹3000
25. 25.What is the simple interest on ₹4500 at 3% per year for 3 years? (a) ₹405 (b) ₹540 (c) ₹4905 (d) ₹135
26. 26.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2160 (b) ₹2080 (c) ₹160 (d) ₹2240
27. 27.₹3000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3360 (b) ₹4440 (c) ₹1440 (d) ₹4800
28. 28.In how many years will ₹8500 earn ₹2125 simple interest at 5% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
29. 29.What is the simple interest on ₹10000 at 2% per year for 4 years? (a) ₹10800 (b) ₹200 (c) ₹1000 (d) ₹800
30. 30.₹5500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹495 (b) ₹5665 (c) ₹6160 (d) ₹5995
31. 31.In how many years will ₹2500 earn ₹600 simple interest at 12% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
32. 32.In how many years will ₹5500 earn ₹990 simple interest at 9% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
33. 33.In how many years will ₹4000 earn ₹480 simple interest at 4% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
34. 34.What is the simple interest on ₹3500 at 9% per year for 2 years? (a) ₹4130 (b) ₹945 (c) ₹630 (d) ₹315
35. 35.The simple interest on ₹9000 for 2 years is ₹1620. What is the rate per year? (a) 9% (b) 8% (c) 18% (d) 10%
36. 36.The simple interest on ₹5000 for 4 years is ₹2200. What is the rate per year? (a) 10% (b) 12% (c) 44% (d) 11%
37. 37.In how many years will ₹10000 earn ₹4500 simple interest at 9% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
38. 38.The simple interest on ₹2500 for 3 years is ₹450. What is the rate per year? (a) 7% (b) 6% (c) 18% (d) 5%
39. 39.What is the simple interest on ₹4000 at 7% per year for 4 years? (a) ₹5120 (b) ₹1120 (c) ₹1400 (d) ₹280
40. 40.The simple interest on ₹1000 for 5 years is ₹300. What is the rate per year? (a) 5% (b) 7% (c) 6% (d) 30%

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