Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 271 · 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.The simple interest on ₹4000 for 4 years is ₹1120. What is the rate per year? (a) 7% (b) 8% (c) 6% (d) 28%
2. 2.In how many years will ₹3500 earn ₹350 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
3. 3.In how many years will ₹7500 earn ₹4125 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
4. 4.₹7500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹8325 (b) ₹9975 (c) ₹9150 (d) ₹1650
5. 5.What is the simple interest on ₹1500 at 11% per year for 5 years? (a) ₹825 (b) ₹990 (c) ₹2325 (d) ₹165
6. 6.In how many years will ₹2000 earn ₹300 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
7. 7.In how many years will ₹4000 earn ₹1320 simple interest at 11% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
8. 8.₹4000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹5600 (b) ₹4320 (c) ₹5280 (d) ₹1280
9. 9.₹2500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹500 (b) ₹3100 (c) ₹2600 (d) ₹3000
10. 10.₹10000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹15500 (b) ₹11100 (c) ₹4400 (d) ₹14400
11. 11.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹9810 (b) ₹270 (c) ₹1080 (d) ₹810
12. 12.What is the simple interest on ₹8000 at 5% per year for 4 years? (a) ₹1600 (b) ₹400 (c) ₹9600 (d) ₹2000
13. 13.The simple interest on ₹7000 for 2 years is ₹700. What is the rate per year? (a) 6% (b) 10% (c) 4% (d) 5%
14. 14.The simple interest on ₹1000 for 4 years is ₹160. What is the rate per year? (a) 16% (b) 5% (c) 3% (d) 4%
15. 15.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹1680 (b) ₹8680 (c) ₹840 (d) ₹2520
16. 16.What is the simple interest on ₹4500 at 10% per year for 4 years? (a) ₹450 (b) ₹2250 (c) ₹6300 (d) ₹1800
17. 17.What is the simple interest on ₹5000 at 11% per year for 4 years? (a) ₹2750 (b) ₹550 (c) ₹2200 (d) ₹7200
18. 18.In how many years will ₹8500 earn ₹850 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
19. 19.In how many years will ₹3000 earn ₹300 simple interest at 5% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
20. 20.What is the simple interest on ₹1500 at 3% per year for 4 years? (a) ₹225 (b) ₹45 (c) ₹1680 (d) ₹180
21. 21.The simple interest on ₹8500 for 2 years is ₹850. What is the rate per year? (a) 5% (b) 4% (c) 10% (d) 6%
22. 22.What is the simple interest on ₹7500 at 8% per year for 3 years? (a) ₹1800 (b) ₹9300 (c) ₹2400 (d) ₹600
23. 23.In how many years will ₹4000 earn ₹840 simple interest at 7% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
24. 24.₹5000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹5300 (c) ₹5900 (d) ₹5600
25. 25.₹4000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹5600 (b) ₹1600 (c) ₹4320 (d) ₹5920
26. 26.The simple interest on ₹5500 for 4 years is ₹2640. What is the rate per year? (a) 13% (b) 11% (c) 48% (d) 12%
27. 27.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹1710 (b) ₹2280 (c) ₹570 (d) ₹11210
28. 28.₹1000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1180 (b) ₹1060 (c) ₹120 (d) ₹1120
29. 29.₹7500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7950 (b) ₹9300 (c) ₹8850 (d) ₹1350
30. 30.₹2000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2160 (b) ₹2800 (c) ₹640 (d) ₹2640
31. 31.In how many years will ₹6500 earn ₹3250 simple interest at 10% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
32. 32.What is the simple interest on ₹6500 at 7% per year for 5 years? (a) ₹455 (b) ₹8775 (c) ₹2730 (d) ₹2275
33. 33.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹110 (b) ₹1440 (c) ₹550 (d) ₹440
34. 34.₹7000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7700 (b) ₹9100 (c) ₹1400 (d) ₹8400
35. 35.The simple interest on ₹10000 for 4 years is ₹4400. What is the rate per year? (a) 11% (b) 12% (c) 44% (d) 10%
36. 36.What is the simple interest on ₹8000 at 2% per year for 4 years? (a) ₹160 (b) ₹800 (c) ₹8640 (d) ₹640
37. 37.What is the simple interest on ₹2500 at 3% per year for 4 years? (a) ₹75 (b) ₹2800 (c) ₹375 (d) ₹300
38. 38.₹6500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹585 (b) ₹7085 (c) ₹7280 (d) ₹6695
39. 39.₹1500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1800 (b) ₹300 (c) ₹1650 (d) ₹1950
40. 40.In how many years will ₹5500 earn ₹660 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years

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