Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 99 · 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.₹8000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1600 (b) ₹10400 (c) ₹9600 (d) ₹8800
2. 2.In how many years will ₹6500 earn ₹1625 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
3. 3.What is the simple interest on ₹7000 at 5% per year for 3 years? (a) ₹8050 (b) ₹1400 (c) ₹1050 (d) ₹350
4. 4.What is the simple interest on ₹3000 at 7% per year for 5 years? (a) ₹210 (b) ₹1050 (c) ₹4050 (d) ₹1260
5. 5.What is the simple interest on ₹7500 at 7% per year for 4 years? (a) ₹2100 (b) ₹2625 (c) ₹9600 (d) ₹525
6. 6.What is the simple interest on ₹8500 at 10% per year for 5 years? (a) ₹850 (b) ₹4250 (c) ₹12750 (d) ₹5100
7. 7.What is the simple interest on ₹1000 at 11% per year for 5 years? (a) ₹1550 (b) ₹550 (c) ₹110 (d) ₹660
8. 8.The simple interest on ₹9500 for 5 years is ₹4750. What is the rate per year? (a) 50% (b) 9% (c) 10% (d) 11%
9. 9.₹2500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹1000 (b) ₹3500 (c) ₹3750 (d) ₹2750
10. 10.What is the simple interest on ₹1500 at 10% per year for 3 years? (a) ₹150 (b) ₹600 (c) ₹1950 (d) ₹450
11. 11.In how many years will ₹8500 earn ₹3060 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
12. 12.The simple interest on ₹4000 for 3 years is ₹240. What is the rate per year? (a) 1% (b) 3% (c) 6% (d) 2%
13. 13.What is the simple interest on ₹9000 at 12% per year for 5 years? (a) ₹5400 (b) ₹14400 (c) ₹1080 (d) ₹6480
14. 14.What is the simple interest on ₹8500 at 5% per year for 2 years? (a) ₹1275 (b) ₹850 (c) ₹425 (d) ₹9350
15. 15.In how many years will ₹8500 earn ₹2040 simple interest at 12% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
16. 16.The simple interest on ₹5000 for 5 years is ₹1000. What is the rate per year? (a) 3% (b) 5% (c) 4% (d) 20%
17. 17.The simple interest on ₹2500 for 4 years is ₹700. What is the rate per year? (a) 7% (b) 6% (c) 28% (d) 8%
18. 18.₹3500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹700 (b) ₹3850 (c) ₹4550 (d) ₹4200
19. 19.The simple interest on ₹7000 for 2 years is ₹420. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 6%
20. 20.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹840 (b) ₹1680 (c) ₹2520 (d) ₹8680
21. 21.₹8500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹9180 (b) ₹2040 (c) ₹10540 (d) ₹11220
22. 22.The simple interest on ₹8000 for 5 years is ₹1200. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 15%
23. 23.What is the simple interest on ₹1500 at 3% per year for 5 years? (a) ₹225 (b) ₹45 (c) ₹270 (d) ₹1725
24. 24.What is the simple interest on ₹1000 at 10% per year for 2 years? (a) ₹1200 (b) ₹200 (c) ₹100 (d) ₹300
25. 25.₹4000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹5440 (b) ₹4480 (c) ₹4960 (d) ₹960
26. 26.In how many years will ₹2000 earn ₹200 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
27. 27.What is the simple interest on ₹9000 at 3% per year for 4 years? (a) ₹270 (b) ₹10080 (c) ₹1350 (d) ₹1080
28. 28.What is the simple interest on ₹4500 at 6% per year for 2 years? (a) ₹270 (b) ₹540 (c) ₹810 (d) ₹5040
29. 29.What is the simple interest on ₹3500 at 12% per year for 5 years? (a) ₹5600 (b) ₹2100 (c) ₹420 (d) ₹2520
30. 30.The simple interest on ₹7500 for 3 years is ₹2250. What is the rate per year? (a) 9% (b) 10% (c) 11% (d) 30%
31. 31.What is the simple interest on ₹8500 at 3% per year for 2 years? (a) ₹9010 (b) ₹255 (c) ₹765 (d) ₹510
32. 32.The simple interest on ₹2500 for 2 years is ₹200. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 8%
33. 33.What is the simple interest on ₹5500 at 2% per year for 3 years? (a) ₹330 (b) ₹110 (c) ₹440 (d) ₹5830
34. 34.In how many years will ₹2500 earn ₹800 simple interest at 8% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
35. 35.The simple interest on ₹7000 for 4 years is ₹3080. What is the rate per year? (a) 12% (b) 11% (c) 44% (d) 10%
36. 36.What is the simple interest on ₹6000 at 11% per year for 5 years? (a) ₹660 (b) ₹3960 (c) ₹9300 (d) ₹3300
37. 37.₹10000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹10900 (b) ₹13600 (c) ₹2700 (d) ₹12700
38. 38.₹2000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹2400 (b) ₹2600 (c) ₹2200 (d) ₹400
39. 39.In how many years will ₹3500 earn ₹490 simple interest at 7% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
40. 40.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 6% (b) 20% (c) 5% (d) 4%

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