Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 143 · 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 ₹1000 for 3 years is ₹210. What is the rate per year? (a) 7% (b) 21% (c) 8% (d) 6%
2. 2.₹4500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹4680 (c) ₹4860 (d) ₹5040
3. 3.In how many years will ₹1000 earn ₹360 simple interest at 9% per year? (a) 5 years (b) 4 years (c) 8 years (d) 3 years
4. 4.What is the simple interest on ₹10000 at 3% per year for 2 years? (a) ₹300 (b) ₹600 (c) ₹900 (d) ₹10600
5. 5.₹1500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1860 (b) ₹1560 (c) ₹300 (d) ₹1800
6. 6.What is the simple interest on ₹6000 at 4% per year for 5 years? (a) ₹240 (b) ₹7200 (c) ₹1440 (d) ₹1200
7. 7.In how many years will ₹5000 earn ₹1800 simple interest at 9% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
8. 8.What is the simple interest on ₹5000 at 11% per year for 2 years? (a) ₹6100 (b) ₹1650 (c) ₹1100 (d) ₹550
9. 9.₹5000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹7500 (b) ₹7000 (c) ₹5500 (d) ₹2000
10. 10.In how many years will ₹1500 earn ₹360 simple interest at 6% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
11. 11.The simple interest on ₹5500 for 3 years is ₹660. What is the rate per year? (a) 3% (b) 5% (c) 12% (d) 4%
12. 12.₹7000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1260 (b) ₹7420 (c) ₹8260 (d) ₹8680
13. 13.What is the simple interest on ₹3500 at 9% per year for 5 years? (a) ₹1575 (b) ₹1890 (c) ₹315 (d) ₹5075
14. 14.₹2500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3025 (b) ₹350 (c) ₹2850 (d) ₹2675
15. 15.In how many years will ₹3500 earn ₹490 simple interest at 7% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
16. 16.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹11200 (b) ₹4800 (c) ₹16000 (d) ₹14800
17. 17.The simple interest on ₹2000 for 3 years is ₹600. What is the rate per year? (a) 10% (b) 11% (c) 30% (d) 9%
18. 18.What is the simple interest on ₹4000 at 8% per year for 3 years? (a) ₹4960 (b) ₹320 (c) ₹1280 (d) ₹960
19. 19.What is the simple interest on ₹10000 at 7% per year for 2 years? (a) ₹1400 (b) ₹11400 (c) ₹700 (d) ₹2100
20. 20.₹1000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹1360 (b) ₹1450 (c) ₹1090 (d) ₹360
21. 21.₹8500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8840 (b) ₹9860 (c) ₹1360 (d) ₹10200
22. 22.In how many years will ₹7500 earn ₹750 simple interest at 2% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
23. 23.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
24. 24.What is the simple interest on ₹4000 at 5% per year for 5 years? (a) ₹1200 (b) ₹5000 (c) ₹200 (d) ₹1000
25. 25.₹4500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4815 (b) ₹5760 (c) ₹5445 (d) ₹945
26. 26.In how many years will ₹5500 earn ₹220 simple interest at 2% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
27. 27.₹1500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹2220 (c) ₹1680 (d) ₹2040
28. 28.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4725 (b) ₹5175 (c) ₹450 (d) ₹4950
29. 29.In how many years will ₹4500 earn ₹1215 simple interest at 9% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
30. 30.₹6500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹7020 (b) ₹7150 (c) ₹520 (d) ₹6630
31. 31.The simple interest on ₹9500 for 5 years is ₹4750. What is the rate per year? (a) 50% (b) 11% (c) 10% (d) 9%
32. 32.In how many years will ₹7500 earn ₹2100 simple interest at 7% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
33. 33.The simple interest on ₹5000 for 2 years is ₹700. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 14%
34. 34.The simple interest on ₹6000 for 5 years is ₹900. What is the rate per year? (a) 15% (b) 3% (c) 2% (d) 4%
35. 35.In how many years will ₹1500 earn ₹150 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
36. 36.₹6000 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1440 (b) ₹7440 (c) ₹7800 (d) ₹6360
37. 37.In how many years will ₹2500 earn ₹875 simple interest at 7% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
38. 38.The simple interest on ₹2500 for 2 years is ₹450. What is the rate per year? (a) 10% (b) 18% (c) 8% (d) 9%
39. 39.What is the simple interest on ₹5000 at 2% per year for 3 years? (a) ₹5300 (b) ₹100 (c) ₹300 (d) ₹400
40. 40.What is the simple interest on ₹4000 at 11% per year for 4 years? (a) ₹1760 (b) ₹440 (c) ₹2200 (d) ₹5760

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