Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 104 · 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.₹8000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹8160 (b) ₹8480 (c) ₹320 (d) ₹8320
2. 2.The simple interest on ₹7000 for 4 years is ₹3080. What is the rate per year? (a) 11% (b) 44% (c) 10% (d) 12%
3. 3.₹8000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹640 (b) ₹8960 (c) ₹8640 (d) ₹8320
4. 4.The simple interest on ₹5500 for 2 years is ₹220. What is the rate per year? (a) 4% (b) 1% (c) 3% (d) 2%
5. 5.What is the simple interest on ₹2500 at 2% per year for 5 years? (a) ₹50 (b) ₹300 (c) ₹2750 (d) ₹250
6. 6.₹8500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹10200 (b) ₹1700 (c) ₹11050 (d) ₹9350
7. 7.₹9500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹570 (b) ₹10070 (c) ₹9785 (d) ₹10355
8. 8.₹9500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹12540 (b) ₹3040 (c) ₹10260 (d) ₹13300
9. 9.The simple interest on ₹6500 for 5 years is ₹3900. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 60%
10. 10.In how many years will ₹9500 earn ₹3800 simple interest at 8% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
11. 11.In how many years will ₹3500 earn ₹420 simple interest at 4% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
12. 12.What is the simple interest on ₹3000 at 2% per year for 3 years? (a) ₹60 (b) ₹180 (c) ₹3180 (d) ₹240
13. 13.What is the simple interest on ₹8000 at 5% per year for 3 years? (a) ₹9200 (b) ₹1200 (c) ₹1600 (d) ₹400
14. 14.₹7000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8680 (b) ₹1400 (c) ₹8400 (d) ₹7280
15. 15.₹1000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹120 (b) ₹1120 (c) ₹1030 (d) ₹1150
16. 16.What is the simple interest on ₹1000 at 3% per year for 2 years? (a) ₹30 (b) ₹60 (c) ₹1060 (d) ₹90
17. 17.₹4000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹480 (b) ₹4480 (c) ₹4120 (d) ₹4600
18. 18.What is the simple interest on ₹2000 at 11% per year for 3 years? (a) ₹2660 (b) ₹220 (c) ₹660 (d) ₹880
19. 19.The simple interest on ₹5500 for 3 years is ₹1650. What is the rate per year? (a) 10% (b) 30% (c) 11% (d) 9%
20. 20.The simple interest on ₹7500 for 5 years is ₹4500. What is the rate per year? (a) 13% (b) 12% (c) 60% (d) 11%
21. 21.The simple interest on ₹7500 for 4 years is ₹3600. What is the rate per year? (a) 11% (b) 12% (c) 48% (d) 13%
22. 22.The simple interest on ₹3000 for 4 years is ₹840. What is the rate per year? (a) 7% (b) 8% (c) 28% (d) 6%
23. 23.What is the simple interest on ₹6500 at 5% per year for 3 years? (a) ₹7475 (b) ₹1300 (c) ₹325 (d) ₹975
24. 24.The simple interest on ₹9000 for 4 years is ₹4320. What is the rate per year? (a) 48% (b) 11% (c) 13% (d) 12%
25. 25.What is the simple interest on ₹1000 at 6% per year for 5 years? (a) ₹1300 (b) ₹60 (c) ₹360 (d) ₹300
26. 26.What is the simple interest on ₹7000 at 2% per year for 4 years? (a) ₹560 (b) ₹700 (c) ₹7560 (d) ₹140
27. 27.In how many years will ₹8500 earn ₹3400 simple interest at 8% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
28. 28.The simple interest on ₹8500 for 5 years is ₹2125. What is the rate per year? (a) 25% (b) 6% (c) 4% (d) 5%
29. 29.What is the simple interest on ₹7500 at 5% per year for 3 years? (a) ₹1125 (b) ₹8625 (c) ₹375 (d) ₹1500
30. 30.₹8000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹9280 (b) ₹8320 (c) ₹960 (d) ₹8960
31. 31.What is the simple interest on ₹10000 at 8% per year for 2 years? (a) ₹2400 (b) ₹800 (c) ₹1600 (d) ₹11600
32. 32.The simple interest on ₹6500 for 5 years is ₹2925. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 45%
33. 33.₹4500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹4590 (b) ₹270 (c) ₹4860 (d) ₹4770
34. 34.The simple interest on ₹5000 for 4 years is ₹2200. What is the rate per year? (a) 12% (b) 10% (c) 11% (d) 44%
35. 35.In how many years will ₹3500 earn ₹840 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
36. 36.In how many years will ₹8000 earn ₹2400 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
37. 37.The simple interest on ₹5000 for 3 years is ₹1500. What is the rate per year? (a) 30% (b) 9% (c) 11% (d) 10%
38. 38.The simple interest on ₹1500 for 4 years is ₹240. What is the rate per year? (a) 4% (b) 16% (c) 5% (d) 3%
39. 39.The simple interest on ₹10000 for 4 years is ₹4400. What is the rate per year? (a) 10% (b) 12% (c) 44% (d) 11%
40. 40.What is the simple interest on ₹8500 at 12% per year for 3 years? (a) ₹11560 (b) ₹3060 (c) ₹4080 (d) ₹1020

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