Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 311 · 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.₹7500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹8700 (b) ₹8400 (c) ₹7800 (d) ₹900
2. 2.In how many years will ₹4000 earn ₹2200 simple interest at 11% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
3. 3.In how many years will ₹3500 earn ₹945 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
4. 4.What is the simple interest on ₹7000 at 11% per year for 2 years? (a) ₹2310 (b) ₹1540 (c) ₹770 (d) ₹8540
5. 5.In how many years will ₹4000 earn ₹800 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
6. 6.What is the simple interest on ₹4500 at 2% per year for 5 years? (a) ₹540 (b) ₹4950 (c) ₹450 (d) ₹90
7. 7.The simple interest on ₹1500 for 4 years is ₹600. What is the rate per year? (a) 40% (b) 11% (c) 10% (d) 9%
8. 8.₹4000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹5000 (c) ₹4200 (d) ₹4800
9. 9.The simple interest on ₹7000 for 2 years is ₹560. What is the rate per year? (a) 5% (b) 4% (c) 8% (d) 3%
10. 10.What is the simple interest on ₹2000 at 4% per year for 2 years? (a) ₹80 (b) ₹2160 (c) ₹160 (d) ₹240
11. 11.What is the simple interest on ₹9000 at 3% per year for 5 years? (a) ₹270 (b) ₹1620 (c) ₹1350 (d) ₹10350
12. 12.What is the simple interest on ₹6000 at 8% per year for 2 years? (a) ₹960 (b) ₹1440 (c) ₹480 (d) ₹6960
13. 13.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2575 (b) ₹2725 (c) ₹225 (d) ₹2800
14. 14.In how many years will ₹7000 earn ₹840 simple interest at 3% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
15. 15.₹3000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹3630 (b) ₹420 (c) ₹3420 (d) ₹3210
16. 16.What is the simple interest on ₹2000 at 9% per year for 3 years? (a) ₹2540 (b) ₹720 (c) ₹540 (d) ₹180
17. 17.₹5000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹6500 (b) ₹1250 (c) ₹5250 (d) ₹6250
18. 18.₹8000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹12000 (b) ₹3200 (c) ₹8800 (d) ₹11200
19. 19.The simple interest on ₹1000 for 4 years is ₹400. What is the rate per year? (a) 11% (b) 10% (c) 40% (d) 9%
20. 20.The simple interest on ₹5500 for 2 years is ₹880. What is the rate per year? (a) 9% (b) 16% (c) 8% (d) 7%
21. 21.The simple interest on ₹1000 for 2 years is ₹100. What is the rate per year? (a) 5% (b) 4% (c) 10% (d) 6%
22. 22.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 1%
23. 23.What is the simple interest on ₹10000 at 4% per year for 5 years? (a) ₹400 (b) ₹2000 (c) ₹12000 (d) ₹2400
24. 24.₹4000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹4400 (b) ₹320 (c) ₹4080 (d) ₹4320
25. 25.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹80 (b) ₹240 (c) ₹160 (d) ₹4160
26. 26.The simple interest on ₹7500 for 5 years is ₹1875. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 25%
27. 27.What is the simple interest on ₹5500 at 11% per year for 4 years? (a) ₹3025 (b) ₹2420 (c) ₹7920 (d) ₹605
28. 28.What is the simple interest on ₹9000 at 9% per year for 3 years? (a) ₹2430 (b) ₹3240 (c) ₹810 (d) ₹11430
29. 29.What is the simple interest on ₹6500 at 2% per year for 5 years? (a) ₹650 (b) ₹780 (c) ₹130 (d) ₹7150
30. 30.The simple interest on ₹8500 for 5 years is ₹3400. What is the rate per year? (a) 8% (b) 40% (c) 9% (d) 7%
31. 31.In how many years will ₹9500 earn ₹3040 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
32. 32.₹9000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹9270 (b) ₹10080 (c) ₹810 (d) ₹9810
33. 33.In how many years will ₹10000 earn ₹3600 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
34. 34.What is the simple interest on ₹7000 at 8% per year for 5 years? (a) ₹2800 (b) ₹3360 (c) ₹560 (d) ₹9800
35. 35.The simple interest on ₹6500 for 2 years is ₹1560. What is the rate per year? (a) 11% (b) 12% (c) 13% (d) 24%
36. 36.What is the simple interest on ₹7500 at 5% per year for 5 years? (a) ₹375 (b) ₹2250 (c) ₹1875 (d) ₹9375
37. 37.₹7000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹10080 (b) ₹7770 (c) ₹2310 (d) ₹9310
38. 38.What is the simple interest on ₹1500 at 7% per year for 3 years? (a) ₹105 (b) ₹315 (c) ₹420 (d) ₹1815
39. 39.What is the simple interest on ₹3000 at 5% per year for 2 years? (a) ₹3300 (b) ₹150 (c) ₹300 (d) ₹450
40. 40.What is the simple interest on ₹9000 at 9% per year for 2 years? (a) ₹1620 (b) ₹10620 (c) ₹2430 (d) ₹810

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