Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 91 · 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.₹6000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹6720 (c) ₹6600 (d) ₹6120
2. 2.In how many years will ₹5500 earn ₹1100 simple interest at 10% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
3. 3.The simple interest on ₹9000 for 2 years is ₹1980. What is the rate per year? (a) 22% (b) 12% (c) 10% (d) 11%
4. 4.What is the simple interest on ₹3000 at 8% per year for 4 years? (a) ₹240 (b) ₹960 (c) ₹3960 (d) ₹1200
5. 5.What is the simple interest on ₹9500 at 11% per year for 3 years? (a) ₹1045 (b) ₹4180 (c) ₹3135 (d) ₹12635
6. 6.What is the simple interest on ₹6500 at 7% per year for 2 years? (a) ₹7410 (b) ₹1365 (c) ₹910 (d) ₹455
7. 7.What is the simple interest on ₹4500 at 8% per year for 4 years? (a) ₹1800 (b) ₹360 (c) ₹1440 (d) ₹5940
8. 8.₹4500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹4860 (c) ₹4770 (d) ₹4590
9. 9.In how many years will ₹4500 earn ₹2250 simple interest at 10% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
10. 10.₹6500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹7085 (b) ₹585 (c) ₹7280 (d) ₹6695
11. 11.In how many years will ₹9500 earn ₹1330 simple interest at 7% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
12. 12.What is the simple interest on ₹8500 at 7% per year for 5 years? (a) ₹3570 (b) ₹2975 (c) ₹595 (d) ₹11475
13. 13.The simple interest on ₹1000 for 5 years is ₹400. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 40%
14. 14.In how many years will ₹9000 earn ₹1440 simple interest at 8% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
15. 15.What is the simple interest on ₹3500 at 6% per year for 2 years? (a) ₹3920 (b) ₹420 (c) ₹630 (d) ₹210
16. 16.What is the simple interest on ₹6000 at 10% per year for 2 years? (a) ₹600 (b) ₹1800 (c) ₹7200 (d) ₹1200
17. 17.What is the simple interest on ₹4000 at 6% per year for 4 years? (a) ₹1200 (b) ₹4960 (c) ₹240 (d) ₹960
18. 18.₹6000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹8700 (b) ₹6540 (c) ₹8160 (d) ₹2160
19. 19.The simple interest on ₹4000 for 4 years is ₹960. What is the rate per year? (a) 7% (b) 24% (c) 6% (d) 5%
20. 20.What is the simple interest on ₹7500 at 6% per year for 2 years? (a) ₹450 (b) ₹8400 (c) ₹1350 (d) ₹900
21. 21.In how many years will ₹6000 earn ₹720 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
22. 22.₹3500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹525 (b) ₹4130 (c) ₹3605 (d) ₹4025
23. 23.The simple interest on ₹7000 for 3 years is ₹2310. What is the rate per year? (a) 33% (b) 11% (c) 10% (d) 12%
24. 24.The simple interest on ₹6500 for 3 years is ₹1950. What is the rate per year? (a) 10% (b) 30% (c) 11% (d) 9%
25. 25.What is the simple interest on ₹7500 at 9% per year for 5 years? (a) ₹10875 (b) ₹675 (c) ₹4050 (d) ₹3375
26. 26.The simple interest on ₹9000 for 3 years is ₹810. What is the rate per year? (a) 2% (b) 9% (c) 3% (d) 4%
27. 27.What is the simple interest on ₹4500 at 2% per year for 4 years? (a) ₹90 (b) ₹450 (c) ₹360 (d) ₹4860
28. 28.What is the simple interest on ₹7500 at 8% per year for 4 years? (a) ₹3000 (b) ₹2400 (c) ₹9900 (d) ₹600
29. 29.In how many years will ₹1000 earn ₹60 simple interest at 2% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
30. 30.What is the simple interest on ₹1000 at 2% per year for 4 years? (a) ₹20 (b) ₹80 (c) ₹1080 (d) ₹100
31. 31.What is the simple interest on ₹1500 at 2% per year for 4 years? (a) ₹120 (b) ₹30 (c) ₹1620 (d) ₹150
32. 32.What is the simple interest on ₹4500 at 8% per year for 2 years? (a) ₹720 (b) ₹360 (c) ₹5220 (d) ₹1080
33. 33.₹3500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹3675 (b) ₹3850 (c) ₹4025 (d) ₹350
34. 34.₹6000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1800 (b) ₹8400 (c) ₹6600 (d) ₹7800
35. 35.In how many years will ₹6500 earn ₹2340 simple interest at 12% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
36. 36.₹7500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹8025 (b) ₹10125 (c) ₹9600 (d) ₹2100
37. 37.₹4000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹1440 (b) ₹5920 (c) ₹4480 (d) ₹5440
38. 38.₹2000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹2220 (b) ₹2660 (c) ₹2440 (d) ₹440
39. 39.The simple interest on ₹2000 for 5 years is ₹400. What is the rate per year? (a) 20% (b) 3% (c) 5% (d) 4%
40. 40.The simple interest on ₹2000 for 4 years is ₹960. What is the rate per year? (a) 48% (b) 12% (c) 13% (d) 11%

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