Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 991 · 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.What is the simple interest on ₹2500 at 9% per year for 3 years? (a) ₹225 (b) ₹3175 (c) ₹900 (d) ₹675
2. 2.₹4000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹4440 (b) ₹4880 (c) ₹5320 (d) ₹880
3. 3.₹6000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹7320 (b) ₹6660 (c) ₹1320 (d) ₹7980
4. 4.In how many years will ₹7000 earn ₹280 simple interest at 2% per year? (a) 4 years (b) 1 year (c) 3 years (d) 2 years
5. 5.The simple interest on ₹10000 for 4 years is ₹4800. What is the rate per year? (a) 13% (b) 11% (c) 48% (d) 12%
6. 6.What is the simple interest on ₹3500 at 6% per year for 5 years? (a) ₹1050 (b) ₹1260 (c) ₹4550 (d) ₹210
7. 7.₹9000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹9630 (b) ₹10890 (c) ₹1260 (d) ₹10260
8. 8.In how many years will ₹1500 earn ₹750 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
9. 9.In how many years will ₹10000 earn ₹800 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
10. 10.₹1000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹1050 (b) ₹1150 (c) ₹1100 (d) ₹100
11. 11.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 27% (b) 9% (c) 8% (d) 10%
12. 12.The simple interest on ₹7000 for 5 years is ₹3850. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 55%
13. 13.₹4500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹810 (b) ₹5310 (c) ₹5715 (d) ₹4905
14. 14.In how many years will ₹5500 earn ₹1155 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
15. 15.In how many years will ₹6500 earn ₹2340 simple interest at 9% per year? (a) 8 years (b) 5 years (c) 3 years (d) 4 years
16. 16.What is the simple interest on ₹7500 at 6% per year for 5 years? (a) ₹450 (b) ₹2700 (c) ₹2250 (d) ₹9750
17. 17.In how many years will ₹5000 earn ₹2250 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
18. 18.The simple interest on ₹4500 for 4 years is ₹1980. What is the rate per year? (a) 44% (b) 11% (c) 12% (d) 10%
19. 19.In how many years will ₹5500 earn ₹440 simple interest at 2% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
20. 20.The simple interest on ₹3000 for 2 years is ₹120. What is the rate per year? (a) 3% (b) 4% (c) 1% (d) 2%
21. 21.What is the simple interest on ₹10000 at 2% per year for 2 years? (a) ₹200 (b) ₹10400 (c) ₹400 (d) ₹600
22. 22.In how many years will ₹3500 earn ₹350 simple interest at 2% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
23. 23.In how many years will ₹2000 earn ₹280 simple interest at 7% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
24. 24.What is the simple interest on ₹1500 at 8% per year for 4 years? (a) ₹600 (b) ₹1980 (c) ₹480 (d) ₹120
25. 25.What is the simple interest on ₹10000 at 8% per year for 4 years? (a) ₹800 (b) ₹13200 (c) ₹3200 (d) ₹4000
26. 26.₹10000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹12100 (b) ₹2100 (c) ₹12800 (d) ₹10700
27. 27.What is the simple interest on ₹2500 at 10% per year for 4 years? (a) ₹3500 (b) ₹1250 (c) ₹1000 (d) ₹250
28. 28.The simple interest on ₹10000 for 5 years is ₹5500. What is the rate per year? (a) 12% (b) 55% (c) 10% (d) 11%
29. 29.What is the simple interest on ₹8000 at 11% per year for 2 years? (a) ₹880 (b) ₹1760 (c) ₹2640 (d) ₹9760
30. 30.What is the simple interest on ₹6500 at 3% per year for 3 years? (a) ₹195 (b) ₹585 (c) ₹780 (d) ₹7085
31. 31.What is the simple interest on ₹1500 at 4% per year for 3 years? (a) ₹240 (b) ₹60 (c) ₹180 (d) ₹1680
32. 32.The simple interest on ₹7000 for 5 years is ₹2800. What is the rate per year? (a) 9% (b) 7% (c) 8% (d) 40%
33. 33.The simple interest on ₹1000 for 4 years is ₹160. What is the rate per year? (a) 5% (b) 3% (c) 4% (d) 16%
34. 34.In how many years will ₹5000 earn ₹800 simple interest at 4% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
35. 35.₹3500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹1400 (b) ₹4900 (c) ₹5250 (d) ₹3850
36. 36.₹8000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹8160 (b) ₹8800 (c) ₹8960 (d) ₹800
37. 37.In how many years will ₹2000 earn ₹400 simple interest at 5% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
38. 38.The simple interest on ₹9000 for 4 years is ₹2880. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 32%
39. 39.₹7000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹8680 (b) ₹1680 (c) ₹7840 (d) ₹9520
40. 40.In how many years will ₹10000 earn ₹2800 simple interest at 7% per year? (a) 5 years (b) 8 years (c) 3 years (d) 4 years

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