Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 238 · 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 5% per year simple interest. What is the amount after 2 years? (a) ₹9200 (b) ₹8800 (c) ₹8400 (d) ₹800
2. 2.What is the simple interest on ₹9000 at 11% per year for 5 years? (a) ₹13950 (b) ₹4950 (c) ₹990 (d) ₹5940
3. 3.In how many years will ₹2500 earn ₹500 simple interest at 4% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
4. 4.The simple interest on ₹9000 for 5 years is ₹1350. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 15%
5. 5.In how many years will ₹3000 earn ₹300 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
6. 6.The simple interest on ₹10000 for 3 years is ₹600. What is the rate per year? (a) 3% (b) 2% (c) 6% (d) 1%
7. 7.The simple interest on ₹8000 for 3 years is ₹1920. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
8. 8.The simple interest on ₹3000 for 3 years is ₹450. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 15%
9. 9.₹1500 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹1680 (b) ₹1725 (c) ₹180 (d) ₹1545
10. 10.In how many years will ₹1000 earn ₹100 simple interest at 2% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
11. 11.₹3000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹4800 (c) ₹4500 (d) ₹3300
12. 12.The simple interest on ₹9500 for 2 years is ₹2280. What is the rate per year? (a) 12% (b) 11% (c) 13% (d) 24%
13. 13.What is the simple interest on ₹2500 at 12% per year for 2 years? (a) ₹600 (b) ₹900 (c) ₹3100 (d) ₹300
14. 14.₹10000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹14000 (b) ₹4000 (c) ₹15000 (d) ₹11000
15. 15.The simple interest on ₹2500 for 2 years is ₹600. What is the rate per year? (a) 13% (b) 24% (c) 11% (d) 12%
16. 16.What is the simple interest on ₹8500 at 5% per year for 5 years? (a) ₹10625 (b) ₹2550 (c) ₹2125 (d) ₹425
17. 17.What is the simple interest on ₹6500 at 4% per year for 3 years? (a) ₹1040 (b) ₹260 (c) ₹780 (d) ₹7280
18. 18.What is the simple interest on ₹10000 at 3% per year for 2 years? (a) ₹300 (b) ₹600 (c) ₹900 (d) ₹10600
19. 19.The simple interest on ₹3000 for 5 years is ₹1650. What is the rate per year? (a) 10% (b) 11% (c) 55% (d) 12%
20. 20.₹6000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹2400 (b) ₹9000 (c) ₹6600 (d) ₹8400
21. 21.In how many years will ₹7500 earn ₹900 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
22. 22.What is the simple interest on ₹2500 at 3% per year for 5 years? (a) ₹450 (b) ₹375 (c) ₹75 (d) ₹2875
23. 23.₹8500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹9265 (b) ₹11560 (c) ₹2295 (d) ₹10795
24. 24.In how many years will ₹6500 earn ₹1300 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
25. 25.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹570 (b) ₹9880 (c) ₹190 (d) ₹380
26. 26.In how many years will ₹4500 earn ₹720 simple interest at 4% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
27. 27.In how many years will ₹5000 earn ₹500 simple interest at 2% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
28. 28.What is the simple interest on ₹1000 at 7% per year for 4 years? (a) ₹1280 (b) ₹280 (c) ₹350 (d) ₹70
29. 29.What is the simple interest on ₹9000 at 3% per year for 4 years? (a) ₹10080 (b) ₹1350 (c) ₹1080 (d) ₹270
30. 30.₹6500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹7280 (b) ₹9620 (c) ₹2340 (d) ₹8840
31. 31.What is the simple interest on ₹1000 at 11% per year for 4 years? (a) ₹110 (b) ₹1440 (c) ₹550 (d) ₹440
32. 32.What is the simple interest on ₹1500 at 3% per year for 4 years? (a) ₹45 (b) ₹1680 (c) ₹225 (d) ₹180
33. 33.What is the simple interest on ₹1000 at 7% per year for 5 years? (a) ₹420 (b) ₹350 (c) ₹1350 (d) ₹70
34. 34.In how many years will ₹1000 earn ₹360 simple interest at 12% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
35. 35.What is the simple interest on ₹6500 at 3% per year for 2 years? (a) ₹195 (b) ₹6890 (c) ₹585 (d) ₹390
36. 36.The simple interest on ₹7500 for 4 years is ₹600. What is the rate per year? (a) 3% (b) 1% (c) 8% (d) 2%
37. 37.In how many years will ₹4500 earn ₹1080 simple interest at 8% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
38. 38.In how many years will ₹7000 earn ₹1680 simple interest at 12% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
39. 39.In how many years will ₹1000 earn ₹40 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
40. 40.₹6500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1560 (b) ₹7280 (c) ₹8060 (d) ₹8840

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