Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 554 · 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.₹4000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹5440 (b) ₹1440 (c) ₹5800 (d) ₹4360
2. 2.In how many years will ₹1500 earn ₹360 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
3. 3.₹3500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹840 (b) ₹4550 (c) ₹3710 (d) ₹4340
4. 4.₹4500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹4905 (b) ₹4770 (c) ₹4635 (d) ₹270
5. 5.What is the simple interest on ₹3000 at 9% per year for 2 years? (a) ₹270 (b) ₹3540 (c) ₹810 (d) ₹540
6. 6.₹6500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹7150 (b) ₹9750 (c) ₹3250 (d) ₹10400
7. 7.The simple interest on ₹10000 for 4 years is ₹1600. What is the rate per year? (a) 4% (b) 16% (c) 5% (d) 3%
8. 8.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 5% (b) 4% (c) 20% (d) 6%
9. 9.₹8000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1200 (b) ₹8240 (c) ₹9440 (d) ₹9200
10. 10.What is the simple interest on ₹5000 at 4% per year for 4 years? (a) ₹200 (b) ₹1000 (c) ₹800 (d) ₹5800
11. 11.₹6000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹7620 (b) ₹7080 (c) ₹6540 (d) ₹1080
12. 12.₹9500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹12065 (b) ₹12920 (c) ₹10355 (d) ₹2565
13. 13.What is the simple interest on ₹2500 at 2% per year for 5 years? (a) ₹2750 (b) ₹300 (c) ₹50 (d) ₹250
14. 14.In how many years will ₹3000 earn ₹450 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
15. 15.The simple interest on ₹6500 for 5 years is ₹650. What is the rate per year? (a) 1% (b) 10% (c) 2% (d) 3%
16. 16.The simple interest on ₹8000 for 2 years is ₹960. What is the rate per year? (a) 5% (b) 12% (c) 6% (d) 7%
17. 17.₹2500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹2600 (b) ₹2900 (c) ₹3000 (d) ₹400
18. 18.In how many years will ₹2500 earn ₹1100 simple interest at 11% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
19. 19.In how many years will ₹7500 earn ₹1800 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
20. 20.What is the simple interest on ₹1500 at 5% per year for 2 years? (a) ₹150 (b) ₹75 (c) ₹1650 (d) ₹225
21. 21.What is the simple interest on ₹7000 at 4% per year for 5 years? (a) ₹8400 (b) ₹280 (c) ₹1680 (d) ₹1400
22. 22.What is the simple interest on ₹2500 at 10% per year for 5 years? (a) ₹3750 (b) ₹1500 (c) ₹250 (d) ₹1250
23. 23.The simple interest on ₹1000 for 5 years is ₹100. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 10%
24. 24.In how many years will ₹5500 earn ₹770 simple interest at 7% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
25. 25.The simple interest on ₹2500 for 2 years is ₹300. What is the rate per year? (a) 12% (b) 5% (c) 7% (d) 6%
26. 26.The simple interest on ₹4500 for 2 years is ₹900. What is the rate per year? (a) 10% (b) 20% (c) 9% (d) 11%
27. 27.What is the simple interest on ₹8500 at 4% per year for 5 years? (a) ₹340 (b) ₹1700 (c) ₹2040 (d) ₹10200
28. 28.₹7500 is invested at 10% per year simple interest. What is the amount after 5 years? (a) ₹12000 (b) ₹3750 (c) ₹8250 (d) ₹11250
29. 29.What is the simple interest on ₹4000 at 4% per year for 2 years? (a) ₹160 (b) ₹480 (c) ₹320 (d) ₹4320
30. 30.The simple interest on ₹1500 for 2 years is ₹180. What is the rate per year? (a) 5% (b) 7% (c) 12% (d) 6%
31. 31.₹8000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹12800 (b) ₹4800 (c) ₹8960 (d) ₹13760
32. 32.What is the simple interest on ₹6500 at 10% per year for 2 years? (a) ₹1950 (b) ₹650 (c) ₹1300 (d) ₹7800
33. 33.₹6500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1300 (b) ₹8125 (c) ₹6825 (d) ₹7800
34. 34.₹2500 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹900 (c) ₹3400 (d) ₹3700
35. 35.In how many years will ₹7500 earn ₹1125 simple interest at 3% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
36. 36.In how many years will ₹1000 earn ₹240 simple interest at 6% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
37. 37.The simple interest on ₹2000 for 2 years is ₹280. What is the rate per year? (a) 8% (b) 6% (c) 7% (d) 14%
38. 38.₹1500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹1800 (c) ₹1860 (d) ₹1560
39. 39.₹1500 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹1815 (b) ₹1605 (c) ₹315 (d) ₹1920
40. 40.In how many years will ₹5000 earn ₹700 simple interest at 7% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years

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