Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 669 · 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.What is the simple interest on ₹1000 at 8% per year for 3 years? (a) ₹240 (b) ₹80 (c) ₹1240 (d) ₹320
2. 2.In how many years will ₹8500 earn ₹2125 simple interest at 5% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
3. 3.₹7000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹840 (b) ₹8050 (c) ₹7840 (d) ₹7210
4. 4.What is the simple interest on ₹1500 at 4% per year for 2 years? (a) ₹180 (b) ₹120 (c) ₹60 (d) ₹1620
5. 5.The simple interest on ₹10000 for 4 years is ₹2800. What is the rate per year? (a) 6% (b) 28% (c) 8% (d) 7%
6. 6.What is the simple interest on ₹3000 at 3% per year for 3 years? (a) ₹270 (b) ₹90 (c) ₹3270 (d) ₹360
7. 7.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹1320 (b) ₹80 (c) ₹320 (d) ₹400
8. 8.₹3000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹3450 (b) ₹300 (c) ₹3300 (d) ₹3150
9. 9.₹2000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹200 (b) ₹2200 (c) ₹2100 (d) ₹2300
10. 10.₹1000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹1090 (b) ₹1120 (c) ₹90 (d) ₹1030
11. 11.In how many years will ₹2500 earn ₹750 simple interest at 6% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
12. 12.The simple interest on ₹7500 for 3 years is ₹2250. What is the rate per year? (a) 30% (b) 10% (c) 9% (d) 11%
13. 13.In how many years will ₹2500 earn ₹875 simple interest at 7% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
14. 14.₹1500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2220 (b) ₹1680 (c) ₹2040 (d) ₹540
15. 15.What is the simple interest on ₹5000 at 4% per year for 2 years? (a) ₹5400 (b) ₹600 (c) ₹400 (d) ₹200
16. 16.₹2500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3000 (b) ₹2600 (c) ₹2900 (d) ₹400
17. 17.What is the simple interest on ₹6500 at 8% per year for 5 years? (a) ₹2600 (b) ₹3120 (c) ₹520 (d) ₹9100
18. 18.The simple interest on ₹6000 for 4 years is ₹1200. What is the rate per year? (a) 6% (b) 4% (c) 20% (d) 5%
19. 19.The simple interest on ₹3000 for 2 years is ₹360. What is the rate per year? (a) 5% (b) 12% (c) 7% (d) 6%
20. 20.₹2000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹2180 (b) ₹3080 (c) ₹900 (d) ₹2900
21. 21.In how many years will ₹8000 earn ₹1920 simple interest at 6% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
22. 22.In how many years will ₹3500 earn ₹840 simple interest at 12% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
23. 23.The simple interest on ₹1000 for 5 years is ₹300. What is the rate per year? (a) 6% (b) 7% (c) 5% (d) 30%
24. 24.In how many years will ₹6500 earn ₹2275 simple interest at 7% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
25. 25.₹7500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹10200 (b) ₹9300 (c) ₹8400 (d) ₹1800
26. 26.In how many years will ₹8500 earn ₹2295 simple interest at 9% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
27. 27.₹9000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹9810 (b) ₹10080 (c) ₹9270 (d) ₹810
28. 28.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
29. 29.What is the simple interest on ₹10000 at 11% per year for 2 years? (a) ₹2200 (b) ₹12200 (c) ₹1100 (d) ₹3300
30. 30.The simple interest on ₹2000 for 4 years is ₹480. What is the rate per year? (a) 5% (b) 24% (c) 7% (d) 6%
31. 31.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹570 (b) ₹380 (c) ₹190 (d) ₹9880
32. 32.In how many years will ₹2000 earn ₹400 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
33. 33.In how many years will ₹3000 earn ₹450 simple interest at 3% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
34. 34.₹2500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹375 (b) ₹2875 (c) ₹2950 (d) ₹2575
35. 35.₹6500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹8060 (b) ₹1560 (c) ₹8580 (d) ₹7020
36. 36.The simple interest on ₹2500 for 5 years is ₹1500. What is the rate per year? (a) 13% (b) 60% (c) 11% (d) 12%
37. 37.₹7500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹8100 (c) ₹8400 (d) ₹7800
38. 38.What is the simple interest on ₹9000 at 5% per year for 5 years? (a) ₹450 (b) ₹11250 (c) ₹2700 (d) ₹2250
39. 39.In how many years will ₹1500 earn ₹270 simple interest at 6% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
40. 40.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 18% (b) 8% (c) 9% (d) 10%

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