Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 77 · 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 ₹5500 for 5 years is ₹2475. What is the rate per year? (a) 8% (b) 9% (c) 10% (d) 45%
2. 2.The simple interest on ₹6000 for 3 years is ₹540. What is the rate per year? (a) 4% (b) 9% (c) 3% (d) 2%
3. 3.₹6500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹9100 (b) ₹9620 (c) ₹7020 (d) ₹2600
4. 4.In how many years will ₹10000 earn ₹4400 simple interest at 11% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
5. 5.The simple interest on ₹1500 for 5 years is ₹225. What is the rate per year? (a) 15% (b) 3% (c) 4% (d) 2%
6. 6.The simple interest on ₹4000 for 2 years is ₹320. What is the rate per year? (a) 3% (b) 5% (c) 8% (d) 4%
7. 7.₹2000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹400 (b) ₹2100 (c) ₹2500 (d) ₹2400
8. 8.The simple interest on ₹7500 for 2 years is ₹300. What is the rate per year? (a) 4% (b) 2% (c) 1% (d) 3%
9. 9.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 6 years (b) 5 years (c) 4 years (d) 10 years
10. 10.₹8000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹8240 (b) ₹9440 (c) ₹1200 (d) ₹9200
11. 11.What is the simple interest on ₹4000 at 5% per year for 3 years? (a) ₹800 (b) ₹600 (c) ₹200 (d) ₹4600
12. 12.What is the simple interest on ₹4000 at 5% per year for 2 years? (a) ₹600 (b) ₹400 (c) ₹200 (d) ₹4400
13. 13.What is the simple interest on ₹7000 at 3% per year for 4 years? (a) ₹840 (b) ₹1050 (c) ₹7840 (d) ₹210
14. 14.The simple interest on ₹10000 for 5 years is ₹5000. What is the rate per year? (a) 50% (b) 9% (c) 10% (d) 11%
15. 15.In how many years will ₹8500 earn ₹2550 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
16. 16.The simple interest on ₹4000 for 5 years is ₹1400. What is the rate per year? (a) 35% (b) 6% (c) 7% (d) 8%
17. 17.The simple interest on ₹2500 for 2 years is ₹500. What is the rate per year? (a) 9% (b) 11% (c) 10% (d) 20%
18. 18.What is the simple interest on ₹8000 at 3% per year for 4 years? (a) ₹8960 (b) ₹960 (c) ₹1200 (d) ₹240
19. 19.What is the simple interest on ₹3500 at 12% per year for 5 years? (a) ₹2100 (b) ₹5600 (c) ₹420 (d) ₹2520
20. 20.₹9000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹9810 (b) ₹810 (c) ₹9270 (d) ₹10080
21. 21.In how many years will ₹1500 earn ₹315 simple interest at 7% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
22. 22.What is the simple interest on ₹1000 at 9% per year for 2 years? (a) ₹90 (b) ₹180 (c) ₹270 (d) ₹1180
23. 23.In how many years will ₹1500 earn ₹600 simple interest at 10% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
24. 24.What is the simple interest on ₹2500 at 4% per year for 2 years? (a) ₹2700 (b) ₹300 (c) ₹200 (d) ₹100
25. 25.What is the simple interest on ₹3500 at 7% per year for 4 years? (a) ₹980 (b) ₹245 (c) ₹4480 (d) ₹1225
26. 26.The simple interest on ₹4000 for 4 years is ₹1760. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 44%
27. 27.The simple interest on ₹7000 for 5 years is ₹1400. What is the rate per year? (a) 20% (b) 5% (c) 3% (d) 4%
28. 28.₹4500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹5220 (b) ₹4860 (c) ₹720 (d) ₹5580
29. 29.What is the simple interest on ₹5500 at 2% per year for 3 years? (a) ₹330 (b) ₹440 (c) ₹5830 (d) ₹110
30. 30.The simple interest on ₹8000 for 4 years is ₹3840. What is the rate per year? (a) 11% (b) 48% (c) 13% (d) 12%
31. 31.In how many years will ₹1500 earn ₹450 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
32. 32.What is the simple interest on ₹7500 at 7% per year for 3 years? (a) ₹525 (b) ₹1575 (c) ₹9075 (d) ₹2100
33. 33.The simple interest on ₹5500 for 3 years is ₹1650. What is the rate per year? (a) 11% (b) 9% (c) 30% (d) 10%
34. 34.What is the simple interest on ₹2000 at 4% per year for 2 years? (a) ₹240 (b) ₹2160 (c) ₹80 (d) ₹160
35. 35.The simple interest on ₹1500 for 3 years is ₹315. What is the rate per year? (a) 7% (b) 6% (c) 21% (d) 8%
36. 36.In how many years will ₹2500 earn ₹1500 simple interest at 12% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
37. 37.What is the simple interest on ₹2500 at 10% per year for 5 years? (a) ₹1500 (b) ₹3750 (c) ₹250 (d) ₹1250
38. 38.The simple interest on ₹8500 for 5 years is ₹2125. What is the rate per year? (a) 4% (b) 5% (c) 25% (d) 6%
39. 39.The simple interest on ₹2000 for 2 years is ₹320. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 16%
40. 40.₹1000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹1070 (b) ₹1280 (c) ₹280 (d) ₹1350

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