Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 869 · 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.₹3000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹3540 (b) ₹3270 (c) ₹3810 (d) ₹540
2. 2.In how many years will ₹7000 earn ₹2310 simple interest at 11% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
3. 3.₹2500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹2950 (b) ₹2725 (c) ₹3175 (d) ₹450
4. 4.What is the simple interest on ₹7500 at 12% per year for 3 years? (a) ₹10200 (b) ₹900 (c) ₹3600 (d) ₹2700
5. 5.What is the simple interest on ₹3000 at 8% per year for 2 years? (a) ₹3480 (b) ₹240 (c) ₹720 (d) ₹480
6. 6.What is the simple interest on ₹7000 at 9% per year for 4 years? (a) ₹3150 (b) ₹2520 (c) ₹9520 (d) ₹630
7. 7.₹9500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹14060 (b) ₹10640 (c) ₹3420 (d) ₹12920
8. 8.What is the simple interest on ₹7000 at 5% per year for 4 years? (a) ₹350 (b) ₹1750 (c) ₹8400 (d) ₹1400
9. 9.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2600 (b) ₹2400 (c) ₹400 (d) ₹2200
10. 10.The simple interest on ₹3000 for 4 years is ₹840. What is the rate per year? (a) 6% (b) 28% (c) 7% (d) 8%
11. 11.₹5000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹8300 (b) ₹2750 (c) ₹7750 (d) ₹5550
12. 12.The simple interest on ₹6500 for 3 years is ₹1365. What is the rate per year? (a) 6% (b) 7% (c) 21% (d) 8%
13. 13.The simple interest on ₹9500 for 2 years is ₹570. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 6%
14. 14.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
15. 15.₹6000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6120 (b) ₹360 (c) ₹6480 (d) ₹6360
16. 16.The simple interest on ₹8000 for 2 years is ₹480. What is the rate per year? (a) 6% (b) 2% (c) 3% (d) 4%
17. 17.The simple interest on ₹7500 for 5 years is ₹4125. What is the rate per year? (a) 55% (b) 10% (c) 11% (d) 12%
18. 18.In how many years will ₹4500 earn ₹1080 simple interest at 6% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
19. 19.What is the simple interest on ₹1500 at 9% per year for 5 years? (a) ₹135 (b) ₹2175 (c) ₹810 (d) ₹675
20. 20.In how many years will ₹7000 earn ₹2800 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 5 years (d) 8 years
21. 21.₹9500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹10070 (b) ₹1710 (c) ₹11780 (d) ₹11210
22. 22.What is the simple interest on ₹8000 at 4% per year for 2 years? (a) ₹320 (b) ₹960 (c) ₹8640 (d) ₹640
23. 23.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹1710 (b) ₹2280 (c) ₹570 (d) ₹11210
24. 24.₹1500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1650 (b) ₹300 (c) ₹1950 (d) ₹1800
25. 25.The simple interest on ₹1500 for 3 years is ₹450. What is the rate per year? (a) 11% (b) 10% (c) 30% (d) 9%
26. 26.The simple interest on ₹4500 for 3 years is ₹1350. What is the rate per year? (a) 30% (b) 9% (c) 10% (d) 11%
27. 27.What is the simple interest on ₹7500 at 6% per year for 2 years? (a) ₹900 (b) ₹8400 (c) ₹450 (d) ₹1350
28. 28.What is the simple interest on ₹9000 at 3% per year for 3 years? (a) ₹9810 (b) ₹270 (c) ₹810 (d) ₹1080
29. 29.What is the simple interest on ₹3500 at 12% per year for 3 years? (a) ₹1680 (b) ₹420 (c) ₹1260 (d) ₹4760
30. 30.The simple interest on ₹8000 for 5 years is ₹2800. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 35%
31. 31.The simple interest on ₹2500 for 4 years is ₹800. What is the rate per year? (a) 32% (b) 9% (c) 8% (d) 7%
32. 32.In how many years will ₹3000 earn ₹1500 simple interest at 10% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
33. 33.₹8000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1200 (b) ₹8400 (c) ₹9600 (d) ₹9200
34. 34.The simple interest on ₹3500 for 4 years is ₹700. What is the rate per year? (a) 20% (b) 4% (c) 6% (d) 5%
35. 35.₹2000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2640 (b) ₹2160 (c) ₹2800 (d) ₹640
36. 36.In how many years will ₹1500 earn ₹375 simple interest at 5% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
37. 37.₹7000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹420 (b) ₹7560 (c) ₹7140 (d) ₹7420
38. 38.₹2000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹2320 (b) ₹2080 (c) ₹2400 (d) ₹320
39. 39.In how many years will ₹8000 earn ₹960 simple interest at 6% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
40. 40.₹9000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹4320 (b) ₹14400 (c) ₹13320 (d) ₹10080

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