Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 750 · 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 ₹9500 at 4% per year for 3 years? (a) ₹1140 (b) ₹10640 (c) ₹380 (d) ₹1520
2. 2.The simple interest on ₹8000 for 2 years is ₹1440. What is the rate per year? (a) 18% (b) 8% (c) 9% (d) 10%
3. 3.What is the simple interest on ₹4500 at 3% per year for 2 years? (a) ₹4770 (b) ₹135 (c) ₹405 (d) ₹270
4. 4.₹2500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3100 (b) ₹2900 (c) ₹2700 (d) ₹400
5. 5.In how many years will ₹6000 earn ₹540 simple interest at 3% per year? (a) 6 years (b) 2 years (c) 4 years (d) 3 years
6. 6.In how many years will ₹2000 earn ₹320 simple interest at 8% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
7. 7.In how many years will ₹2500 earn ₹450 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
8. 8.What is the simple interest on ₹2500 at 8% per year for 5 years? (a) ₹200 (b) ₹1200 (c) ₹1000 (d) ₹3500
9. 9.In how many years will ₹10000 earn ₹800 simple interest at 4% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
10. 10.In how many years will ₹1000 earn ₹200 simple interest at 10% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
11. 11.What is the simple interest on ₹3500 at 12% per year for 4 years? (a) ₹420 (b) ₹2100 (c) ₹1680 (d) ₹5180
12. 12.What is the simple interest on ₹5500 at 10% per year for 2 years? (a) ₹1650 (b) ₹6600 (c) ₹1100 (d) ₹550
13. 13.₹9000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1620 (b) ₹9810 (c) ₹11430 (d) ₹10620
14. 14.What is the simple interest on ₹5000 at 12% per year for 2 years? (a) ₹6200 (b) ₹600 (c) ₹1800 (d) ₹1200
15. 15.In how many years will ₹5000 earn ₹2400 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
16. 16.In how many years will ₹2500 earn ₹625 simple interest at 5% per year? (a) 10 years (b) 6 years (c) 5 years (d) 4 years
17. 17.₹5000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹5100 (b) ₹300 (c) ₹5400 (d) ₹5300
18. 18.What is the simple interest on ₹7500 at 8% per year for 4 years? (a) ₹2400 (b) ₹3000 (c) ₹600 (d) ₹9900
19. 19.₹8500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹9350 (b) ₹11050 (c) ₹2550 (d) ₹11900
20. 20.₹1500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹225 (b) ₹1545 (c) ₹1770 (d) ₹1725
21. 21.The simple interest on ₹9500 for 2 years is ₹2280. What is the rate per year? (a) 13% (b) 11% (c) 24% (d) 12%
22. 22.What is the simple interest on ₹9000 at 9% per year for 4 years? (a) ₹810 (b) ₹12240 (c) ₹4050 (d) ₹3240
23. 23.The simple interest on ₹2500 for 5 years is ₹1000. What is the rate per year? (a) 7% (b) 40% (c) 8% (d) 9%
24. 24.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
25. 25.The simple interest on ₹10000 for 4 years is ₹3600. What is the rate per year? (a) 9% (b) 10% (c) 8% (d) 36%
26. 26.In how many years will ₹7000 earn ₹840 simple interest at 4% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
27. 27.In how many years will ₹6500 earn ₹2080 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
28. 28.The simple interest on ₹4000 for 3 years is ₹240. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 6%
29. 29.The simple interest on ₹8500 for 5 years is ₹1275. What is the rate per year? (a) 4% (b) 3% (c) 15% (d) 2%
30. 30.What is the simple interest on ₹3000 at 9% per year for 2 years? (a) ₹270 (b) ₹540 (c) ₹3540 (d) ₹810
31. 31.In how many years will ₹9500 earn ₹2280 simple interest at 6% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
32. 32.What is the simple interest on ₹1000 at 7% per year for 5 years? (a) ₹1350 (b) ₹70 (c) ₹420 (d) ₹350
33. 33.What is the simple interest on ₹5000 at 6% per year for 2 years? (a) ₹900 (b) ₹5600 (c) ₹600 (d) ₹300
34. 34.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹480 (b) ₹8240 (c) ₹8480 (d) ₹8720
35. 35.What is the simple interest on ₹6500 at 9% per year for 2 years? (a) ₹1170 (b) ₹1755 (c) ₹7670 (d) ₹585
36. 36.In how many years will ₹3000 earn ₹360 simple interest at 3% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
37. 37.The simple interest on ₹1500 for 2 years is ₹120. What is the rate per year? (a) 8% (b) 3% (c) 5% (d) 4%
38. 38.₹1500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹1740 (b) ₹1560 (c) ₹1680 (d) ₹180
39. 39.₹3500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹4620 (b) ₹840 (c) ₹3780 (d) ₹4340
40. 40.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4950 (b) ₹5175 (c) ₹450 (d) ₹4725

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