Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 620 · 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 ₹8000 earn ₹720 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
2. 2.The simple interest on ₹8500 for 5 years is ₹1275. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 15%
3. 3.The simple interest on ₹9000 for 2 years is ₹1080. What is the rate per year? (a) 6% (b) 5% (c) 7% (d) 12%
4. 4.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹240 (b) ₹720 (c) ₹960 (d) ₹6720
5. 5.In how many years will ₹5500 earn ₹1980 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
6. 6.What is the simple interest on ₹6500 at 9% per year for 3 years? (a) ₹8255 (b) ₹2340 (c) ₹1755 (d) ₹585
7. 7.What is the simple interest on ₹7500 at 10% per year for 3 years? (a) ₹3000 (b) ₹750 (c) ₹9750 (d) ₹2250
8. 8.What is the simple interest on ₹7000 at 3% per year for 3 years? (a) ₹840 (b) ₹630 (c) ₹210 (d) ₹7630
9. 9.In how many years will ₹5000 earn ₹1100 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
10. 10.₹7500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹8100 (b) ₹8400 (c) ₹600 (d) ₹7800
11. 11.What is the simple interest on ₹7500 at 2% per year for 2 years? (a) ₹150 (b) ₹300 (c) ₹7800 (d) ₹450
12. 12.In how many years will ₹2500 earn ₹500 simple interest at 5% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
13. 13.In how many years will ₹1000 earn ₹600 simple interest at 12% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
14. 14.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹2280 (b) ₹570 (c) ₹11210 (d) ₹1710
15. 15.What is the simple interest on ₹2000 at 3% per year for 2 years? (a) ₹120 (b) ₹2120 (c) ₹60 (d) ₹180
16. 16.The simple interest on ₹5500 for 3 years is ₹330. What is the rate per year? (a) 2% (b) 3% (c) 1% (d) 6%
17. 17.₹8500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹12325 (b) ₹11560 (c) ₹3060 (d) ₹9265
18. 18.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹225 (c) ₹2725 (d) ₹2575
19. 19.What is the simple interest on ₹10000 at 12% per year for 2 years? (a) ₹3600 (b) ₹12400 (c) ₹1200 (d) ₹2400
20. 20.In how many years will ₹1000 earn ₹80 simple interest at 4% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
21. 21.In how many years will ₹6500 earn ₹1170 simple interest at 9% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
22. 22.The simple interest on ₹2500 for 3 years is ₹225. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 9%
23. 23.The simple interest on ₹3500 for 5 years is ₹1575. What is the rate per year? (a) 45% (b) 9% (c) 8% (d) 10%
24. 24.In how many years will ₹2500 earn ₹150 simple interest at 2% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
25. 25.What is the simple interest on ₹9500 at 12% per year for 4 years? (a) ₹14060 (b) ₹1140 (c) ₹5700 (d) ₹4560
26. 26.₹5500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1540 (b) ₹7040 (c) ₹5885 (d) ₹7425
27. 27.In how many years will ₹5500 earn ₹550 simple interest at 2% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
28. 28.The simple interest on ₹9500 for 3 years is ₹1995. What is the rate per year? (a) 8% (b) 21% (c) 6% (d) 7%
29. 29.In how many years will ₹7000 earn ₹3850 simple interest at 11% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
30. 30.The simple interest on ₹5500 for 2 years is ₹770. What is the rate per year? (a) 8% (b) 14% (c) 7% (d) 6%
31. 31.What is the simple interest on ₹2000 at 5% per year for 4 years? (a) ₹2400 (b) ₹100 (c) ₹500 (d) ₹400
32. 32.What is the simple interest on ₹3000 at 9% per year for 4 years? (a) ₹1080 (b) ₹270 (c) ₹1350 (d) ₹4080
33. 33.What is the simple interest on ₹2500 at 5% per year for 4 years? (a) ₹625 (b) ₹500 (c) ₹125 (d) ₹3000
34. 34.The simple interest on ₹3000 for 3 years is ₹810. What is the rate per year? (a) 8% (b) 9% (c) 27% (d) 10%
35. 35.The simple interest on ₹9500 for 3 years is ₹3420. What is the rate per year? (a) 13% (b) 12% (c) 36% (d) 11%
36. 36.What is the simple interest on ₹7000 at 3% per year for 5 years? (a) ₹1260 (b) ₹1050 (c) ₹210 (d) ₹8050
37. 37.In how many years will ₹8500 earn ₹765 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
38. 38.In how many years will ₹8000 earn ₹960 simple interest at 3% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
39. 39.What is the simple interest on ₹4500 at 10% per year for 2 years? (a) ₹450 (b) ₹1350 (c) ₹5400 (d) ₹900
40. 40.What is the simple interest on ₹4500 at 3% per year for 5 years? (a) ₹675 (b) ₹135 (c) ₹5175 (d) ₹810

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