Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 156 · 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 ₹5500 for 2 years is ₹990. What is the rate per year? (a) 10% (b) 18% (c) 9% (d) 8%
2. 2.₹6000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹720 (b) ₹6720 (c) ₹6360 (d) ₹7080
3. 3.₹4000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹480 (b) ₹4480 (c) ₹4640 (d) ₹4160
4. 4.₹4000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹4080 (b) ₹160 (c) ₹4160 (d) ₹4240
5. 5.In how many years will ₹9000 earn ₹3240 simple interest at 9% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
6. 6.The simple interest on ₹9000 for 3 years is ₹540. What is the rate per year? (a) 6% (b) 1% (c) 2% (d) 3%
7. 7.What is the simple interest on ₹1000 at 11% per year for 2 years? (a) ₹1220 (b) ₹110 (c) ₹220 (d) ₹330
8. 8.₹7000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7700 (b) ₹9100 (c) ₹8400 (d) ₹1400
9. 9.What is the simple interest on ₹3500 at 12% per year for 4 years? (a) ₹5180 (b) ₹420 (c) ₹2100 (d) ₹1680
10. 10.The simple interest on ₹5500 for 5 years is ₹1100. What is the rate per year? (a) 4% (b) 20% (c) 5% (d) 3%
11. 11.The simple interest on ₹5000 for 2 years is ₹400. What is the rate per year? (a) 8% (b) 3% (c) 4% (d) 5%
12. 12.What is the simple interest on ₹6000 at 8% per year for 3 years? (a) ₹1920 (b) ₹1440 (c) ₹7440 (d) ₹480
13. 13.What is the simple interest on ₹4000 at 7% per year for 2 years? (a) ₹4560 (b) ₹280 (c) ₹560 (d) ₹840
14. 14.₹4500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹4725 (b) ₹5625 (c) ₹5850 (d) ₹1125
15. 15.The simple interest on ₹4000 for 4 years is ₹960. What is the rate per year? (a) 5% (b) 24% (c) 7% (d) 6%
16. 16.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹700 (b) ₹4200 (c) ₹1050 (d) ₹350
17. 17.What is the simple interest on ₹2500 at 4% per year for 2 years? (a) ₹2700 (b) ₹100 (c) ₹200 (d) ₹300
18. 18.₹9000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹10800 (b) ₹9360 (c) ₹11160 (d) ₹1800
19. 19.In how many years will ₹8500 earn ₹1700 simple interest at 4% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
20. 20.The simple interest on ₹2000 for 4 years is ₹880. What is the rate per year? (a) 10% (b) 12% (c) 44% (d) 11%
21. 21.In how many years will ₹4000 earn ₹880 simple interest at 11% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
22. 22.The simple interest on ₹6000 for 2 years is ₹360. What is the rate per year? (a) 2% (b) 6% (c) 4% (d) 3%
23. 23.₹5500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹6270 (b) ₹6655 (c) ₹770 (d) ₹5885
24. 24.₹9500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹950 (b) ₹10640 (c) ₹10450 (d) ₹9690
25. 25.In how many years will ₹6000 earn ₹2100 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
26. 26.The simple interest on ₹9000 for 3 years is ₹2160. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 24%
27. 27.The simple interest on ₹6500 for 5 years is ₹975. What is the rate per year? (a) 4% (b) 15% (c) 3% (d) 2%
28. 28.What is the simple interest on ₹4500 at 4% per year for 4 years? (a) ₹900 (b) ₹5220 (c) ₹720 (d) ₹180
29. 29.The simple interest on ₹7000 for 2 years is ₹560. What is the rate per year? (a) 3% (b) 4% (c) 8% (d) 5%
30. 30.What is the simple interest on ₹2000 at 11% per year for 5 years? (a) ₹1320 (b) ₹220 (c) ₹1100 (d) ₹3100
31. 31.What is the simple interest on ₹9500 at 11% per year for 2 years? (a) ₹11590 (b) ₹3135 (c) ₹2090 (d) ₹1045
32. 32.₹7000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1680 (b) ₹7420 (c) ₹8680 (d) ₹9100
33. 33.The simple interest on ₹3000 for 3 years is ₹270. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 9%
34. 34.The simple interest on ₹4000 for 3 years is ₹600. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 15%
35. 35.In how many years will ₹8500 earn ₹2720 simple interest at 8% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
36. 36.In how many years will ₹8500 earn ₹340 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
37. 37.In how many years will ₹8500 earn ₹680 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
38. 38.₹2500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹400 (b) ₹3000 (c) ₹2600 (d) ₹2900
39. 39.₹1500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹1575 (b) ₹1950 (c) ₹1875 (d) ₹375
40. 40.₹3000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹3900 (c) ₹3300 (d) ₹3600

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