Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 80 · 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.₹4500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹6660 (b) ₹4860 (c) ₹6300 (d) ₹1800
2. 2.The simple interest on ₹6500 for 2 years is ₹390. What is the rate per year? (a) 4% (b) 2% (c) 6% (d) 3%
3. 3.The simple interest on ₹7000 for 3 years is ₹1890. What is the rate per year? (a) 27% (b) 10% (c) 9% (d) 8%
4. 4.₹5000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹8600 (b) ₹5600 (c) ₹3000 (d) ₹8000
5. 5.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹150 (b) ₹2600 (c) ₹50 (d) ₹100
6. 6.The simple interest on ₹6500 for 3 years is ₹1560. What is the rate per year? (a) 9% (b) 8% (c) 24% (d) 7%
7. 7.In how many years will ₹1000 earn ₹240 simple interest at 12% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
8. 8.In how many years will ₹7500 earn ₹1650 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
9. 9.₹10000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹11800 (b) ₹10600 (c) ₹1200 (d) ₹11200
10. 10.What is the simple interest on ₹3000 at 7% per year for 2 years? (a) ₹210 (b) ₹420 (c) ₹3420 (d) ₹630
11. 11.₹4500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹1080 (b) ₹5850 (c) ₹4770 (d) ₹5580
12. 12.₹3500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹3850 (b) ₹3780 (c) ₹280 (d) ₹3570
13. 13.₹9500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹570 (b) ₹9785 (c) ₹10070 (d) ₹10355
14. 14.What is the simple interest on ₹2000 at 5% per year for 3 years? (a) ₹100 (b) ₹300 (c) ₹400 (d) ₹2300
15. 15.What is the simple interest on ₹8000 at 2% per year for 5 years? (a) ₹960 (b) ₹800 (c) ₹160 (d) ₹8800
16. 16.The simple interest on ₹9000 for 2 years is ₹1260. What is the rate per year? (a) 14% (b) 8% (c) 7% (d) 6%
17. 17.What is the simple interest on ₹3000 at 12% per year for 2 years? (a) ₹720 (b) ₹1080 (c) ₹360 (d) ₹3720
18. 18.In how many years will ₹7500 earn ₹1800 simple interest at 6% per year? (a) 5 years (b) 3 years (c) 4 years (d) 8 years
19. 19.₹2500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹2550 (b) ₹2700 (c) ₹200 (d) ₹2750
20. 20.₹7500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹8400 (b) ₹8175 (c) ₹675 (d) ₹7725
21. 21.What is the simple interest on ₹7500 at 12% per year for 2 years? (a) ₹900 (b) ₹1800 (c) ₹2700 (d) ₹9300
22. 22.In how many years will ₹9000 earn ₹5400 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
23. 23.In how many years will ₹1000 earn ₹80 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
24. 24.What is the simple interest on ₹6500 at 2% per year for 4 years? (a) ₹130 (b) ₹7020 (c) ₹650 (d) ₹520
25. 25.In how many years will ₹8500 earn ₹1700 simple interest at 5% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
26. 26.₹2500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3025 (b) ₹350 (c) ₹2675 (d) ₹2850
27. 27.The simple interest on ₹2000 for 5 years is ₹600. What is the rate per year? (a) 30% (b) 5% (c) 7% (d) 6%
28. 28.In how many years will ₹2000 earn ₹120 simple interest at 3% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
29. 29.₹6000 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹9600 (b) ₹3000 (c) ₹9000 (d) ₹6600
30. 30.The simple interest on ₹4000 for 3 years is ₹840. What is the rate per year? (a) 6% (b) 7% (c) 21% (d) 8%
31. 31.In how many years will ₹1000 earn ₹160 simple interest at 8% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
32. 32.In how many years will ₹2000 earn ₹300 simple interest at 3% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
33. 33.₹7500 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹9975 (b) ₹8325 (c) ₹9150 (d) ₹1650
34. 34.The simple interest on ₹4000 for 5 years is ₹800. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 20%
35. 35.In how many years will ₹1500 earn ₹135 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
36. 36.₹6000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹9300 (b) ₹9960 (c) ₹6660 (d) ₹3300
37. 37.The simple interest on ₹3500 for 3 years is ₹630. What is the rate per year? (a) 6% (b) 7% (c) 18% (d) 5%
38. 38.What is the simple interest on ₹5000 at 9% per year for 5 years? (a) ₹2700 (b) ₹7250 (c) ₹450 (d) ₹2250
39. 39.What is the simple interest on ₹3500 at 4% per year for 2 years? (a) ₹280 (b) ₹140 (c) ₹420 (d) ₹3780
40. 40.₹8500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹8670 (b) ₹850 (c) ₹9350 (d) ₹9520

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