Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 189 · 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 ₹8000 at 7% per year for 3 years? (a) ₹1680 (b) ₹9680 (c) ₹560 (d) ₹2240
2. 2.The simple interest on ₹6500 for 5 years is ₹3900. What is the rate per year? (a) 13% (b) 11% (c) 12% (d) 60%
3. 3.The simple interest on ₹6500 for 5 years is ₹2600. What is the rate per year? (a) 8% (b) 7% (c) 40% (d) 9%
4. 4.In how many years will ₹8500 earn ₹2805 simple interest at 11% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
5. 5.What is the simple interest on ₹5000 at 11% per year for 5 years? (a) ₹7750 (b) ₹550 (c) ₹3300 (d) ₹2750
6. 6.₹1000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1180 (b) ₹1060 (c) ₹180 (d) ₹1240
7. 7.What is the simple interest on ₹7500 at 7% per year for 4 years? (a) ₹9600 (b) ₹525 (c) ₹2100 (d) ₹2625
8. 8.The simple interest on ₹2000 for 4 years is ₹640. What is the rate per year? (a) 32% (b) 7% (c) 9% (d) 8%
9. 9.In how many years will ₹9000 earn ₹720 simple interest at 2% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
10. 10.The simple interest on ₹9000 for 4 years is ₹3240. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 36%
11. 11.What is the simple interest on ₹3500 at 6% per year for 3 years? (a) ₹210 (b) ₹840 (c) ₹630 (d) ₹4130
12. 12.The simple interest on ₹9500 for 5 years is ₹5225. What is the rate per year? (a) 12% (b) 10% (c) 11% (d) 55%
13. 13.What is the simple interest on ₹3000 at 4% per year for 4 years? (a) ₹120 (b) ₹600 (c) ₹3480 (d) ₹480
14. 14.₹1000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1300 (b) ₹200 (c) ₹1100 (d) ₹1200
15. 15.What is the simple interest on ₹7000 at 4% per year for 3 years? (a) ₹840 (b) ₹280 (c) ₹7840 (d) ₹1120
16. 16.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹3885 (c) ₹1155 (d) ₹4655
17. 17.₹1500 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹2250 (b) ₹2100 (c) ₹1650 (d) ₹600
18. 18.₹6500 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹7280 (b) ₹1560 (c) ₹8840 (d) ₹8060
19. 19.In how many years will ₹5000 earn ₹300 simple interest at 2% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
20. 20.What is the simple interest on ₹2000 at 12% per year for 2 years? (a) ₹720 (b) ₹240 (c) ₹480 (d) ₹2480
21. 21.In how many years will ₹1500 earn ₹450 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 6 years (d) 4 years
22. 22.In how many years will ₹2000 earn ₹200 simple interest at 2% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
23. 23.₹7000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹7350 (b) ₹8400 (c) ₹8050 (d) ₹1050
24. 24.In how many years will ₹6500 earn ₹3575 simple interest at 11% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
25. 25.The simple interest on ₹6500 for 4 years is ₹1820. What is the rate per year? (a) 6% (b) 28% (c) 7% (d) 8%
26. 26.In how many years will ₹1500 earn ₹300 simple interest at 5% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
27. 27.₹3500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹4340 (b) ₹840 (c) ₹3780 (d) ₹4620
28. 28.In how many years will ₹3500 earn ₹1155 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
29. 29.The simple interest on ₹1000 for 4 years is ₹120. What is the rate per year? (a) 12% (b) 3% (c) 4% (d) 2%
30. 30.In how many years will ₹2500 earn ₹875 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
31. 31.₹1000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹1110 (b) ₹1220 (c) ₹220 (d) ₹1330
32. 32.₹1000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹200 (b) ₹1200 (c) ₹1240 (d) ₹1040
33. 33.What is the simple interest on ₹4000 at 7% per year for 3 years? (a) ₹280 (b) ₹1120 (c) ₹4840 (d) ₹840
34. 34.What is the simple interest on ₹4000 at 9% per year for 3 years? (a) ₹360 (b) ₹1080 (c) ₹1440 (d) ₹5080
35. 35.₹7000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹7420 (b) ₹8260 (c) ₹840 (d) ₹7840
36. 36.₹6500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹6890 (b) ₹1170 (c) ₹8060 (d) ₹7670
37. 37.₹2000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹280 (b) ₹2420 (c) ₹2280 (d) ₹2140
38. 38.What is the simple interest on ₹8000 at 2% per year for 5 years? (a) ₹960 (b) ₹160 (c) ₹800 (d) ₹8800
39. 39.What is the simple interest on ₹7000 at 12% per year for 3 years? (a) ₹3360 (b) ₹2520 (c) ₹840 (d) ₹9520
40. 40.What is the simple interest on ₹9000 at 6% per year for 2 years? (a) ₹540 (b) ₹1080 (c) ₹10080 (d) ₹1620

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