Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 921 · 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.₹7500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹7950 (c) ₹8100 (d) ₹7650
2. 2.₹8500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹9435 (b) ₹3740 (c) ₹13175 (d) ₹12240
3. 3.What is the simple interest on ₹7000 at 5% per year for 2 years? (a) ₹350 (b) ₹700 (c) ₹7700 (d) ₹1050
4. 4.What is the simple interest on ₹9500 at 5% per year for 5 years? (a) ₹11875 (b) ₹475 (c) ₹2850 (d) ₹2375
5. 5.₹5000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹5550 (b) ₹1650 (c) ₹7200 (d) ₹6650
6. 6.What is the simple interest on ₹1500 at 4% per year for 2 years? (a) ₹180 (b) ₹1620 (c) ₹120 (d) ₹60
7. 7.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹270 (b) ₹1080 (c) ₹810 (d) ₹9810
8. 8.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
9. 9.₹2500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹450 (b) ₹3100 (c) ₹2650 (d) ₹2950
10. 10.The simple interest on ₹2000 for 2 years is ₹280. What is the rate per year? (a) 14% (b) 7% (c) 8% (d) 6%
11. 11.What is the simple interest on ₹2500 at 12% per year for 4 years? (a) ₹1500 (b) ₹1200 (c) ₹300 (d) ₹3700
12. 12.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹135 (b) ₹4770 (c) ₹270 (d) ₹405
13. 13.In how many years will ₹4000 earn ₹480 simple interest at 4% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
14. 14.What is the simple interest on ₹9000 at 11% per year for 3 years? (a) ₹3960 (b) ₹990 (c) ₹11970 (d) ₹2970
15. 15.₹3000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹3300 (b) ₹3600 (c) ₹600 (d) ₹3900
16. 16.In how many years will ₹4000 earn ₹800 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
17. 17.₹6500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹8320 (b) ₹6955 (c) ₹1365 (d) ₹7865
18. 18.₹5500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹7480 (b) ₹6985 (c) ₹1485 (d) ₹5995
19. 19.The simple interest on ₹1500 for 2 years is ₹60. What is the rate per year? (a) 4% (b) 3% (c) 1% (d) 2%
20. 20.The simple interest on ₹8000 for 2 years is ₹480. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 6%
21. 21.In how many years will ₹2500 earn ₹150 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
22. 22.The simple interest on ₹5000 for 4 years is ₹2200. What is the rate per year? (a) 12% (b) 10% (c) 11% (d) 44%
23. 23.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹7420 (b) ₹420 (c) ₹210 (d) ₹630
24. 24.What is the simple interest on ₹10000 at 2% per year for 2 years? (a) ₹600 (b) ₹10400 (c) ₹400 (d) ₹200
25. 25.The simple interest on ₹1500 for 2 years is ₹360. What is the rate per year? (a) 13% (b) 12% (c) 24% (d) 11%
26. 26.₹2500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹2750 (b) ₹3500 (c) ₹1000 (d) ₹3750
27. 27.What is the simple interest on ₹4000 at 3% per year for 3 years? (a) ₹360 (b) ₹120 (c) ₹4360 (d) ₹480
28. 28.In how many years will ₹4500 earn ₹900 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
29. 29.₹3000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹450 (b) ₹3090 (c) ₹3540 (d) ₹3450
30. 30.What is the simple interest on ₹1000 at 4% per year for 3 years? (a) ₹160 (b) ₹1120 (c) ₹120 (d) ₹40
31. 31.In how many years will ₹3500 earn ₹1120 simple interest at 8% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
32. 32.₹10000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹10600 (b) ₹10200 (c) ₹400 (d) ₹10400
33. 33.In how many years will ₹6000 earn ₹1440 simple interest at 8% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
34. 34.₹4500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹270 (b) ₹4905 (c) ₹4770 (d) ₹4635
35. 35.The simple interest on ₹4000 for 5 years is ₹1000. What is the rate per year? (a) 5% (b) 25% (c) 6% (d) 4%
36. 36.What is the simple interest on ₹8500 at 10% per year for 5 years? (a) ₹5100 (b) ₹4250 (c) ₹850 (d) ₹12750
37. 37.₹7500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹9300 (b) ₹1800 (c) ₹7950 (d) ₹9750
38. 38.What is the simple interest on ₹7500 at 5% per year for 2 years? (a) ₹375 (b) ₹1125 (c) ₹750 (d) ₹8250
39. 39.The simple interest on ₹10000 for 5 years is ₹4000. What is the rate per year? (a) 40% (b) 9% (c) 7% (d) 8%
40. 40.₹1000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹1080 (b) ₹1480 (c) ₹400 (d) ₹1400

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