Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 906 · 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 11% per year simple interest. What is the amount after 4 years? (a) ₹11625 (b) ₹8325 (c) ₹3300 (d) ₹10800
2. 2.In how many years will ₹8500 earn ₹680 simple interest at 4% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
3. 3.The simple interest on ₹6500 for 2 years is ₹260. What is the rate per year? (a) 3% (b) 1% (c) 2% (d) 4%
4. 4.What is the simple interest on ₹4500 at 7% per year for 5 years? (a) ₹1575 (b) ₹315 (c) ₹6075 (d) ₹1890
5. 5.₹6000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹6240 (b) ₹6120 (c) ₹240 (d) ₹6360
6. 6.What is the simple interest on ₹1500 at 6% per year for 5 years? (a) ₹1950 (b) ₹540 (c) ₹90 (d) ₹450
7. 7.What is the simple interest on ₹3000 at 11% per year for 4 years? (a) ₹330 (b) ₹4320 (c) ₹1650 (d) ₹1320
8. 8.₹7500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4125 (b) ₹8325 (c) ₹12450 (d) ₹11625
9. 9.The simple interest on ₹4000 for 3 years is ₹1440. What is the rate per year? (a) 11% (b) 36% (c) 13% (d) 12%
10. 10.What is the simple interest on ₹2500 at 5% per year for 5 years? (a) ₹750 (b) ₹3125 (c) ₹625 (d) ₹125
11. 11.In how many years will ₹5000 earn ₹900 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
12. 12.₹9000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹11700 (b) ₹10800 (c) ₹9900 (d) ₹1800
13. 13.The simple interest on ₹4500 for 2 years is ₹810. What is the rate per year? (a) 18% (b) 8% (c) 10% (d) 9%
14. 14.₹9000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹9540 (b) ₹540 (c) ₹9810 (d) ₹9270
15. 15.The simple interest on ₹5500 for 4 years is ₹660. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 2%
16. 16.In how many years will ₹7500 earn ₹1500 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
17. 17.What is the simple interest on ₹1500 at 8% per year for 4 years? (a) ₹1980 (b) ₹120 (c) ₹600 (d) ₹480
18. 18.In how many years will ₹7000 earn ₹420 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
19. 19.In how many years will ₹7000 earn ₹3850 simple interest at 11% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
20. 20.What is the simple interest on ₹2500 at 9% per year for 2 years? (a) ₹675 (b) ₹225 (c) ₹450 (d) ₹2950
21. 21.What is the simple interest on ₹3000 at 4% per year for 3 years? (a) ₹120 (b) ₹3360 (c) ₹480 (d) ₹360
22. 22.The simple interest on ₹5000 for 5 years is ₹2000. What is the rate per year? (a) 7% (b) 8% (c) 9% (d) 40%
23. 23.₹4000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹4280 (b) ₹4840 (c) ₹5120 (d) ₹840
24. 24.₹9000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹360 (b) ₹9540 (c) ₹9180 (d) ₹9360
25. 25.₹7000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹280 (b) ₹7420 (c) ₹7280 (d) ₹7140
26. 26.The simple interest on ₹9500 for 2 years is ₹570. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 6%
27. 27.What is the simple interest on ₹7000 at 11% per year for 4 years? (a) ₹10080 (b) ₹3850 (c) ₹770 (d) ₹3080
28. 28.₹2500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹2750 (b) ₹3250 (c) ₹750 (d) ₹3500
29. 29.₹4500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹4860 (b) ₹5040 (c) ₹360 (d) ₹4680
30. 30.₹3000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹4080 (b) ₹3180 (c) ₹900 (d) ₹3900
31. 31.₹9000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹12240 (b) ₹2430 (c) ₹11430 (d) ₹9810
32. 32.₹4000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹4800 (b) ₹4400 (c) ₹800 (d) ₹5200
33. 33.₹7500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹7875 (b) ₹1875 (c) ₹9375 (d) ₹9750
34. 34.₹8000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1920 (b) ₹10880 (c) ₹9920 (d) ₹8960
35. 35.₹3000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹480 (b) ₹3480 (c) ₹3720 (d) ₹3240
36. 36.In how many years will ₹1500 earn ₹660 simple interest at 11% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
37. 37.What is the simple interest on ₹2000 at 12% per year for 4 years? (a) ₹240 (b) ₹2960 (c) ₹1200 (d) ₹960
38. 38.₹2000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2240 (b) ₹2080 (c) ₹2160 (d) ₹160
39. 39.What is the simple interest on ₹9000 at 5% per year for 4 years? (a) ₹10800 (b) ₹2250 (c) ₹1800 (d) ₹450
40. 40.₹1000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹1540 (b) ₹1090 (c) ₹1450 (d) ₹450

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