Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 16 · 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 ₹4500 at 3% per year for 2 years? (a) ₹405 (b) ₹4770 (c) ₹135 (d) ₹270
2. 2.What is the simple interest on ₹9000 at 9% per year for 2 years? (a) ₹1620 (b) ₹10620 (c) ₹810 (d) ₹2430
3. 3.₹3500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹4025 (b) ₹525 (c) ₹3605 (d) ₹4130
4. 4.The simple interest on ₹7500 for 3 years is ₹450. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 6%
5. 5.In how many years will ₹2000 earn ₹120 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
6. 6.In how many years will ₹4000 earn ₹1440 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
7. 7.The simple interest on ₹2500 for 2 years is ₹200. What is the rate per year? (a) 8% (b) 5% (c) 4% (d) 3%
8. 8.₹2500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹900 (b) ₹3625 (c) ₹3400 (d) ₹2725
9. 9.The simple interest on ₹8000 for 5 years is ₹4800. What is the rate per year? (a) 11% (b) 12% (c) 60% (d) 13%
10. 10.In how many years will ₹8500 earn ₹3400 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
11. 11.₹2500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹2950 (b) ₹375 (c) ₹2575 (d) ₹2875
12. 12.₹1500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2040 (b) ₹1950 (c) ₹1590 (d) ₹450
13. 13.₹9000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹9900 (b) ₹2700 (c) ₹11700 (d) ₹12600
14. 14.In how many years will ₹6500 earn ₹1820 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
15. 15.In how many years will ₹6000 earn ₹600 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
16. 16.What is the simple interest on ₹2000 at 6% per year for 5 years? (a) ₹600 (b) ₹2600 (c) ₹720 (d) ₹120
17. 17.What is the simple interest on ₹3000 at 10% per year for 3 years? (a) ₹900 (b) ₹1200 (c) ₹3900 (d) ₹300
18. 18.What is the simple interest on ₹7500 at 3% per year for 3 years? (a) ₹8175 (b) ₹900 (c) ₹225 (d) ₹675
19. 19.What is the simple interest on ₹2500 at 6% per year for 5 years? (a) ₹3250 (b) ₹750 (c) ₹150 (d) ₹900
20. 20.What is the simple interest on ₹6000 at 9% per year for 5 years? (a) ₹540 (b) ₹2700 (c) ₹3240 (d) ₹8700
21. 21.What is the simple interest on ₹5000 at 5% per year for 2 years? (a) ₹250 (b) ₹5500 (c) ₹500 (d) ₹750
22. 22.In how many years will ₹6000 earn ₹2160 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
23. 23.In how many years will ₹1000 earn ₹200 simple interest at 4% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
24. 24.₹8500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹3400 (b) ₹12750 (c) ₹11900 (d) ₹9350
25. 25.The simple interest on ₹7000 for 2 years is ₹280. What is the rate per year? (a) 2% (b) 1% (c) 4% (d) 3%
26. 26.In how many years will ₹4000 earn ₹1800 simple interest at 9% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
27. 27.What is the simple interest on ₹9000 at 10% per year for 4 years? (a) ₹4500 (b) ₹900 (c) ₹3600 (d) ₹12600
28. 28.₹2000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹2180 (b) ₹2540 (c) ₹2720 (d) ₹540
29. 29.What is the simple interest on ₹6500 at 9% per year for 2 years? (a) ₹1170 (b) ₹7670 (c) ₹1755 (d) ₹585
30. 30.₹9500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹10640 (b) ₹1140 (c) ₹10070 (d) ₹11210
31. 31.What is the simple interest on ₹2000 at 10% per year for 2 years? (a) ₹200 (b) ₹2400 (c) ₹600 (d) ₹400
32. 32.In how many years will ₹1000 earn ₹80 simple interest at 4% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
33. 33.₹4000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹640 (b) ₹4640 (c) ₹4320 (d) ₹4960
34. 34.₹2000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹3200 (b) ₹2240 (c) ₹2960 (d) ₹960
35. 35.The simple interest on ₹5500 for 3 years is ₹1815. What is the rate per year? (a) 10% (b) 11% (c) 33% (d) 12%
36. 36.In how many years will ₹7500 earn ₹450 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
37. 37.What is the simple interest on ₹3000 at 11% per year for 4 years? (a) ₹4320 (b) ₹330 (c) ₹1320 (d) ₹1650
38. 38.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
39. 39.₹9500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹2280 (b) ₹10640 (c) ₹11780 (d) ₹12920
40. 40.The simple interest on ₹2000 for 3 years is ₹420. What is the rate per year? (a) 8% (b) 21% (c) 7% (d) 6%

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