Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 931 · 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.₹3500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹420 (b) ₹3640 (c) ₹4060 (d) ₹3920
2. 2.₹5000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹5400 (b) ₹400 (c) ₹5600 (d) ₹5200
3. 3.₹10000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹12400 (b) ₹13600 (c) ₹2400 (d) ₹11200
4. 4.The simple interest on ₹2500 for 4 years is ₹800. What is the rate per year? (a) 32% (b) 9% (c) 8% (d) 7%
5. 5.The simple interest on ₹7500 for 3 years is ₹900. What is the rate per year? (a) 5% (b) 4% (c) 12% (d) 3%
6. 6.₹5000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1200 (b) ₹6800 (c) ₹6200 (d) ₹5600
7. 7.What is the simple interest on ₹4000 at 8% per year for 2 years? (a) ₹640 (b) ₹960 (c) ₹4640 (d) ₹320
8. 8.₹6500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1560 (b) ₹8450 (c) ₹6890 (d) ₹8060
9. 9.₹6500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹6955 (b) ₹8320 (c) ₹7865 (d) ₹1365
10. 10.₹1000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1450 (b) ₹1090 (c) ₹360 (d) ₹1360
11. 11.The simple interest on ₹4500 for 2 years is ₹720. What is the rate per year? (a) 7% (b) 9% (c) 8% (d) 16%
12. 12.The simple interest on ₹3500 for 2 years is ₹280. What is the rate per year? (a) 3% (b) 8% (c) 5% (d) 4%
13. 13.What is the simple interest on ₹2000 at 10% per year for 5 years? (a) ₹200 (b) ₹1000 (c) ₹3000 (d) ₹1200
14. 14.The simple interest on ₹3500 for 4 years is ₹1260. What is the rate per year? (a) 9% (b) 10% (c) 36% (d) 8%
15. 15.What is the simple interest on ₹7500 at 8% per year for 2 years? (a) ₹600 (b) ₹8700 (c) ₹1200 (d) ₹1800
16. 16.What is the simple interest on ₹2500 at 10% per year for 4 years? (a) ₹3500 (b) ₹1250 (c) ₹250 (d) ₹1000
17. 17.In how many years will ₹2500 earn ₹300 simple interest at 6% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
18. 18.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹3240 (b) ₹60 (c) ₹300 (d) ₹240
19. 19.What is the simple interest on ₹1500 at 6% per year for 2 years? (a) ₹90 (b) ₹180 (c) ₹1680 (d) ₹270
20. 20.What is the simple interest on ₹8500 at 10% per year for 5 years? (a) ₹850 (b) ₹5100 (c) ₹4250 (d) ₹12750
21. 21.What is the simple interest on ₹1000 at 6% per year for 4 years? (a) ₹240 (b) ₹300 (c) ₹60 (d) ₹1240
22. 22.The simple interest on ₹9500 for 5 years is ₹4275. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 45%
23. 23.₹6000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹8400 (b) ₹6480 (c) ₹7920 (d) ₹1920
24. 24.₹10000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹400 (b) ₹10400 (c) ₹10200 (d) ₹10600
25. 25.₹5000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹8000 (b) ₹7500 (c) ₹5500 (d) ₹2500
26. 26.In how many years will ₹6000 earn ₹1800 simple interest at 10% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
27. 27.What is the simple interest on ₹2500 at 3% per year for 3 years? (a) ₹300 (b) ₹2725 (c) ₹75 (d) ₹225
28. 28.What is the simple interest on ₹8000 at 2% per year for 3 years? (a) ₹160 (b) ₹480 (c) ₹640 (d) ₹8480
29. 29.The simple interest on ₹3500 for 3 years is ₹840. What is the rate per year? (a) 9% (b) 24% (c) 8% (d) 7%
30. 30.In how many years will ₹8000 earn ₹1680 simple interest at 7% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
31. 31.In how many years will ₹5500 earn ₹1100 simple interest at 4% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
32. 32.In how many years will ₹6500 earn ₹1950 simple interest at 6% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
33. 33.In how many years will ₹7500 earn ₹1500 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
34. 34.What is the simple interest on ₹3000 at 7% per year for 2 years? (a) ₹3420 (b) ₹630 (c) ₹210 (d) ₹420
35. 35.What is the simple interest on ₹10000 at 4% per year for 3 years? (a) ₹11200 (b) ₹1600 (c) ₹1200 (d) ₹400
36. 36.The simple interest on ₹7500 for 2 years is ₹300. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 4%
37. 37.₹6000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹7260 (b) ₹1260 (c) ₹6420 (d) ₹7680
38. 38.What is the simple interest on ₹3000 at 11% per year for 4 years? (a) ₹1320 (b) ₹330 (c) ₹4320 (d) ₹1650
39. 39.What is the simple interest on ₹2500 at 9% per year for 4 years? (a) ₹225 (b) ₹900 (c) ₹3400 (d) ₹1125
40. 40.₹1000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1020 (b) ₹40 (c) ₹1060 (d) ₹1040

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