Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 320 · 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.In how many years will ₹1000 earn ₹120 simple interest at 4% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
2. 2.In how many years will ₹1500 earn ₹660 simple interest at 11% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
3. 3.What is the simple interest on ₹7500 at 8% per year for 2 years? (a) ₹1800 (b) ₹600 (c) ₹8700 (d) ₹1200
4. 4.What is the simple interest on ₹3500 at 4% per year for 5 years? (a) ₹840 (b) ₹4200 (c) ₹140 (d) ₹700
5. 5.What is the simple interest on ₹3000 at 4% per year for 2 years? (a) ₹120 (b) ₹240 (c) ₹3240 (d) ₹360
6. 6.₹1500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1800 (b) ₹1860 (c) ₹300 (d) ₹1560
7. 7.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹440 (b) ₹110 (c) ₹1440 (d) ₹550
8. 8.What is the simple interest on ₹9500 at 7% per year for 2 years? (a) ₹1995 (b) ₹1330 (c) ₹665 (d) ₹10830
9. 9.The simple interest on ₹6500 for 4 years is ₹780. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 12%
10. 10.In how many years will ₹4500 earn ₹810 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
11. 11.What is the simple interest on ₹7000 at 11% per year for 5 years? (a) ₹4620 (b) ₹3850 (c) ₹770 (d) ₹10850
12. 12.₹3500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹3780 (b) ₹280 (c) ₹3640 (d) ₹3920
13. 13.What is the simple interest on ₹2000 at 10% per year for 2 years? (a) ₹2400 (b) ₹600 (c) ₹200 (d) ₹400
14. 14.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹1470 (b) ₹980 (c) ₹7980 (d) ₹490
15. 15.What is the simple interest on ₹1000 at 5% per year for 3 years? (a) ₹50 (b) ₹150 (c) ₹200 (d) ₹1150
16. 16.The simple interest on ₹10000 for 3 years is ₹3600. What is the rate per year? (a) 13% (b) 12% (c) 11% (d) 36%
17. 17.In how many years will ₹7000 earn ₹1050 simple interest at 5% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
18. 18.₹5500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹5995 (b) ₹6985 (c) ₹7480 (d) ₹1485
19. 19.In how many years will ₹10000 earn ₹2000 simple interest at 5% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
20. 20.In how many years will ₹7000 earn ₹3150 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
21. 21.The simple interest on ₹2500 for 5 years is ₹375. What is the rate per year? (a) 15% (b) 4% (c) 2% (d) 3%
22. 22.What is the simple interest on ₹6000 at 6% per year for 5 years? (a) ₹1800 (b) ₹360 (c) ₹2160 (d) ₹7800
23. 23.In how many years will ₹9500 earn ₹4750 simple interest at 10% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
24. 24.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 8% (b) 7% (c) 28% (d) 6%
25. 25.₹4500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹5040 (b) ₹6660 (c) ₹2160 (d) ₹7200
26. 26.₹3000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹3090 (b) ₹3450 (c) ₹450 (d) ₹3540
27. 27.The simple interest on ₹2500 for 3 years is ₹225. What is the rate per year? (a) 4% (b) 3% (c) 9% (d) 2%
28. 28.₹9000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹9810 (b) ₹1620 (c) ₹10620 (d) ₹11430
29. 29.₹3000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹3900 (b) ₹720 (c) ₹3720 (d) ₹3180
30. 30.In how many years will ₹10000 earn ₹1600 simple interest at 4% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
31. 31.In how many years will ₹4500 earn ₹2025 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
32. 32.The simple interest on ₹4500 for 5 years is ₹1800. What is the rate per year? (a) 9% (b) 40% (c) 8% (d) 7%
33. 33.The simple interest on ₹4000 for 2 years is ₹560. What is the rate per year? (a) 7% (b) 14% (c) 8% (d) 6%
34. 34.What is the simple interest on ₹1500 at 5% per year for 3 years? (a) ₹1725 (b) ₹225 (c) ₹300 (d) ₹75
35. 35.₹6500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹780 (b) ₹6760 (c) ₹7280 (d) ₹7540
36. 36.In how many years will ₹8500 earn ₹510 simple interest at 2% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
37. 37.The simple interest on ₹5000 for 4 years is ₹1200. What is the rate per year? (a) 24% (b) 5% (c) 6% (d) 7%
38. 38.In how many years will ₹2000 earn ₹800 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
39. 39.The simple interest on ₹7000 for 2 years is ₹1680. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
40. 40.What is the simple interest on ₹3000 at 2% per year for 4 years? (a) ₹3240 (b) ₹300 (c) ₹240 (d) ₹60

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