Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 72 · 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 8% per year simple interest. What is the amount after 3 years? (a) ₹8640 (b) ₹1920 (c) ₹10560 (d) ₹9920
2. 2.What is the simple interest on ₹3500 at 8% per year for 3 years? (a) ₹840 (b) ₹1120 (c) ₹280 (d) ₹4340
3. 3.The simple interest on ₹8500 for 3 years is ₹3060. What is the rate per year? (a) 12% (b) 11% (c) 36% (d) 13%
4. 4.What is the simple interest on ₹9500 at 10% per year for 3 years? (a) ₹950 (b) ₹2850 (c) ₹12350 (d) ₹3800
5. 5.What is the simple interest on ₹3500 at 2% per year for 3 years? (a) ₹3710 (b) ₹70 (c) ₹280 (d) ₹210
6. 6.₹10000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹12400 (b) ₹11200 (c) ₹2400 (d) ₹13600
7. 7.₹9000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹10080 (b) ₹15480 (c) ₹14400 (d) ₹5400
8. 8.₹3000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹3180 (b) ₹4080 (c) ₹3900 (d) ₹900
9. 9.₹5000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1400 (b) ₹5350 (c) ₹6750 (d) ₹6400
10. 10.What is the simple interest on ₹5500 at 9% per year for 3 years? (a) ₹1485 (b) ₹1980 (c) ₹6985 (d) ₹495
11. 11.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹570 (b) ₹2280 (c) ₹1710 (d) ₹11210
12. 12.What is the simple interest on ₹2500 at 3% per year for 3 years? (a) ₹75 (b) ₹2725 (c) ₹300 (d) ₹225
13. 13.The simple interest on ₹2500 for 3 years is ₹450. What is the rate per year? (a) 6% (b) 5% (c) 18% (d) 7%
14. 14.In how many years will ₹1000 earn ₹150 simple interest at 3% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
15. 15.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3720 (b) ₹3240 (c) ₹3480 (d) ₹480
16. 16.₹7500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹8250 (b) ₹10500 (c) ₹9750 (d) ₹2250
17. 17.₹9000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9360 (b) ₹1440 (c) ₹10800 (d) ₹10440
18. 18.In how many years will ₹9000 earn ₹4950 simple interest at 11% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
19. 19.What is the simple interest on ₹5500 at 3% per year for 2 years? (a) ₹5830 (b) ₹495 (c) ₹330 (d) ₹165
20. 20.What is the simple interest on ₹2000 at 7% per year for 5 years? (a) ₹700 (b) ₹2700 (c) ₹140 (d) ₹840
21. 21.₹1500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹1560 (c) ₹1800 (d) ₹1860
22. 22.What is the simple interest on ₹2000 at 9% per year for 2 years? (a) ₹360 (b) ₹180 (c) ₹540 (d) ₹2360
23. 23.What is the simple interest on ₹2500 at 9% per year for 2 years? (a) ₹225 (b) ₹2950 (c) ₹450 (d) ₹675
24. 24.The simple interest on ₹3000 for 3 years is ₹630. What is the rate per year? (a) 8% (b) 21% (c) 6% (d) 7%
25. 25.In how many years will ₹9000 earn ₹4050 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
26. 26.What is the simple interest on ₹2500 at 10% per year for 5 years? (a) ₹1500 (b) ₹3750 (c) ₹1250 (d) ₹250
27. 27.₹9000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1350 (b) ₹10800 (c) ₹9450 (d) ₹10350
28. 28.What is the simple interest on ₹4000 at 10% per year for 4 years? (a) ₹400 (b) ₹1600 (c) ₹5600 (d) ₹2000
29. 29.₹10000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹12400 (b) ₹1800 (c) ₹11800 (d) ₹10600
30. 30.What is the simple interest on ₹8500 at 4% per year for 3 years? (a) ₹1360 (b) ₹9520 (c) ₹340 (d) ₹1020
31. 31.₹4000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹720 (b) ₹4960 (c) ₹4240 (d) ₹4720
32. 32.₹6500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹6760 (b) ₹6890 (c) ₹6630 (d) ₹260
33. 33.In how many years will ₹4500 earn ₹1800 simple interest at 10% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
34. 34.The simple interest on ₹8500 for 3 years is ₹2805. What is the rate per year? (a) 33% (b) 12% (c) 11% (d) 10%
35. 35.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹3710 (b) ₹105 (c) ₹315 (d) ₹210
36. 36.What is the simple interest on ₹6000 at 7% per year for 5 years? (a) ₹2520 (b) ₹420 (c) ₹2100 (d) ₹8100
37. 37.The simple interest on ₹9500 for 3 years is ₹3420. What is the rate per year? (a) 13% (b) 12% (c) 36% (d) 11%
38. 38.₹7000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹9520 (b) ₹7840 (c) ₹8680 (d) ₹1680
39. 39.The simple interest on ₹6000 for 4 years is ₹2640. What is the rate per year? (a) 10% (b) 44% (c) 11% (d) 12%
40. 40.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years

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