Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 252 · 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.₹8500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹11305 (b) ₹9435 (c) ₹10370 (d) ₹1870
2. 2.In how many years will ₹5500 earn ₹2200 simple interest at 8% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
3. 3.₹2500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹350 (b) ₹2675 (c) ₹3025 (d) ₹2850
4. 4.₹9500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹570 (b) ₹9690 (c) ₹10070 (d) ₹10260
5. 5.What is the simple interest on ₹7500 at 12% per year for 4 years? (a) ₹4500 (b) ₹3600 (c) ₹900 (d) ₹11100
6. 6.₹3500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹4200 (b) ₹700 (c) ₹4375 (d) ₹3675
7. 7.In how many years will ₹5000 earn ₹1500 simple interest at 10% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
8. 8.In how many years will ₹9500 earn ₹3325 simple interest at 7% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
9. 9.₹9000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹11430 (b) ₹9810 (c) ₹1620 (d) ₹10620
10. 10.What is the simple interest on ₹2000 at 3% per year for 5 years? (a) ₹60 (b) ₹360 (c) ₹2300 (d) ₹300
11. 11.₹9500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1140 (b) ₹10640 (c) ₹10925 (d) ₹9785
12. 12.The simple interest on ₹2000 for 3 years is ₹240. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 5%
13. 13.₹4000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹4360 (b) ₹720 (c) ₹5080 (d) ₹4720
14. 14.In how many years will ₹2000 earn ₹360 simple interest at 9% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
15. 15.₹5000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹2750 (b) ₹8300 (c) ₹5550 (d) ₹7750
16. 16.The simple interest on ₹6500 for 2 years is ₹1300. What is the rate per year? (a) 9% (b) 10% (c) 11% (d) 20%
17. 17.In how many years will ₹7500 earn ₹2700 simple interest at 12% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
18. 18.₹2500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹625 (b) ₹3250 (c) ₹3125 (d) ₹2625
19. 19.₹9500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹9880 (b) ₹1520 (c) ₹11020 (d) ₹11400
20. 20.The simple interest on ₹8500 for 4 years is ₹2720. What is the rate per year? (a) 7% (b) 8% (c) 32% (d) 9%
21. 21.What is the simple interest on ₹9500 at 5% per year for 4 years? (a) ₹11400 (b) ₹2375 (c) ₹1900 (d) ₹475
22. 22.In how many years will ₹2000 earn ₹420 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
23. 23.₹10000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹2000 (b) ₹12500 (c) ₹12000 (d) ₹10500
24. 24.In how many years will ₹2000 earn ₹300 simple interest at 5% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
25. 25.In how many years will ₹2500 earn ₹100 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
26. 26.The simple interest on ₹6500 for 2 years is ₹1040. What is the rate per year? (a) 8% (b) 16% (c) 9% (d) 7%
27. 27.What is the simple interest on ₹9000 at 5% per year for 3 years? (a) ₹1350 (b) ₹10350 (c) ₹450 (d) ₹1800
28. 28.What is the simple interest on ₹7500 at 2% per year for 4 years? (a) ₹150 (b) ₹8100 (c) ₹750 (d) ₹600
29. 29.What is the simple interest on ₹3000 at 10% per year for 5 years? (a) ₹300 (b) ₹1800 (c) ₹4500 (d) ₹1500
30. 30.The simple interest on ₹2000 for 4 years is ₹160. What is the rate per year? (a) 8% (b) 1% (c) 2% (d) 3%
31. 31.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹90 (b) ₹450 (c) ₹360 (d) ₹3360
32. 32.In how many years will ₹2500 earn ₹600 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
33. 33.The simple interest on ₹3000 for 4 years is ₹1320. What is the rate per year? (a) 44% (b) 10% (c) 11% (d) 12%
34. 34.What is the simple interest on ₹1500 at 4% per year for 5 years? (a) ₹300 (b) ₹360 (c) ₹1800 (d) ₹60
35. 35.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 1%
36. 36.₹10000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹16000 (b) ₹6000 (c) ₹11200 (d) ₹17200
37. 37.The simple interest on ₹8500 for 3 years is ₹2805. What is the rate per year? (a) 10% (b) 33% (c) 11% (d) 12%
38. 38.What is the simple interest on ₹4000 at 11% per year for 2 years? (a) ₹880 (b) ₹4880 (c) ₹440 (d) ₹1320
39. 39.The simple interest on ₹5500 for 2 years is ₹330. What is the rate per year? (a) 3% (b) 4% (c) 6% (d) 2%
40. 40.₹7000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹8890 (b) ₹1260 (c) ₹8260 (d) ₹7630

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