Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 384 · 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.The simple interest on ₹1000 for 3 years is ₹90. What is the rate per year? (a) 4% (b) 2% (c) 9% (d) 3%
2. 2.What is the simple interest on ₹4000 at 11% per year for 2 years? (a) ₹4880 (b) ₹440 (c) ₹1320 (d) ₹880
3. 3.The simple interest on ₹7000 for 4 years is ₹1400. What is the rate per year? (a) 5% (b) 6% (c) 20% (d) 4%
4. 4.₹9000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹10350 (b) ₹9450 (c) ₹9900 (d) ₹900
5. 5.₹2000 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹2300 (b) ₹200 (c) ₹2100 (d) ₹2200
6. 6.What is the simple interest on ₹8000 at 6% per year for 3 years? (a) ₹1920 (b) ₹1440 (c) ₹9440 (d) ₹480
7. 7.In how many years will ₹4500 earn ₹270 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
8. 8.The simple interest on ₹4500 for 2 years is ₹630. What is the rate per year? (a) 14% (b) 7% (c) 6% (d) 8%
9. 9.What is the simple interest on ₹9500 at 3% per year for 4 years? (a) ₹10640 (b) ₹285 (c) ₹1425 (d) ₹1140
10. 10.In how many years will ₹5000 earn ₹800 simple interest at 4% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
11. 11.₹4000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹720 (b) ₹4240 (c) ₹4720 (d) ₹4960
12. 12.The simple interest on ₹7500 for 3 years is ₹900. What is the rate per year? (a) 4% (b) 12% (c) 5% (d) 3%
13. 13.In how many years will ₹8000 earn ₹3200 simple interest at 8% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
14. 14.The simple interest on ₹1500 for 3 years is ₹360. What is the rate per year? (a) 9% (b) 8% (c) 7% (d) 24%
15. 15.₹2500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹750 (b) ₹3400 (c) ₹2650 (d) ₹3250
16. 16.What is the simple interest on ₹10000 at 3% per year for 4 years? (a) ₹300 (b) ₹11200 (c) ₹1200 (d) ₹1500
17. 17.₹5500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹6380 (b) ₹880 (c) ₹5940 (d) ₹6820
18. 18.₹8000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹8320 (b) ₹9920 (c) ₹9600 (d) ₹1600
19. 19.What is the simple interest on ₹1500 at 3% per year for 2 years? (a) ₹135 (b) ₹45 (c) ₹1590 (d) ₹90
20. 20.The simple interest on ₹6500 for 2 years is ₹260. What is the rate per year? (a) 2% (b) 4% (c) 3% (d) 1%
21. 21.₹5000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1350 (b) ₹6350 (c) ₹5450 (d) ₹6800
22. 22.The simple interest on ₹2000 for 2 years is ₹360. What is the rate per year? (a) 18% (b) 8% (c) 9% (d) 10%
23. 23.In how many years will ₹9000 earn ₹2160 simple interest at 12% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
24. 24.What is the simple interest on ₹2500 at 10% per year for 3 years? (a) ₹250 (b) ₹3250 (c) ₹1000 (d) ₹750
25. 25.₹8500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1530 (b) ₹10030 (c) ₹9010 (d) ₹10540
26. 26.In how many years will ₹5500 earn ₹1210 simple interest at 11% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
27. 27.₹9000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹9270 (b) ₹10620 (c) ₹1350 (d) ₹10350
28. 28.The simple interest on ₹6000 for 3 years is ₹1980. What is the rate per year? (a) 12% (b) 33% (c) 10% (d) 11%
29. 29.In how many years will ₹3000 earn ₹420 simple interest at 7% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
30. 30.What is the simple interest on ₹9500 at 12% per year for 2 years? (a) ₹11780 (b) ₹2280 (c) ₹3420 (d) ₹1140
31. 31.The simple interest on ₹4000 for 3 years is ₹600. What is the rate per year? (a) 15% (b) 4% (c) 5% (d) 6%
32. 32.What is the simple interest on ₹9000 at 7% per year for 4 years? (a) ₹3150 (b) ₹11520 (c) ₹2520 (d) ₹630
33. 33.What is the simple interest on ₹8500 at 6% per year for 3 years? (a) ₹2040 (b) ₹1530 (c) ₹510 (d) ₹10030
34. 34.₹9500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹10260 (b) ₹9880 (c) ₹10640 (d) ₹760
35. 35.The simple interest on ₹7500 for 4 years is ₹600. What is the rate per year? (a) 8% (b) 1% (c) 2% (d) 3%
36. 36.₹6000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹7260 (b) ₹840 (c) ₹6840 (d) ₹6420
37. 37.₹8000 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹720 (b) ₹8240 (c) ₹8960 (d) ₹8720
38. 38.What is the simple interest on ₹3000 at 7% per year for 4 years? (a) ₹840 (b) ₹1050 (c) ₹3840 (d) ₹210
39. 39.The simple interest on ₹9500 for 2 years is ₹1140. What is the rate per year? (a) 12% (b) 7% (c) 6% (d) 5%
40. 40.What is the simple interest on ₹6500 at 6% per year for 3 years? (a) ₹390 (b) ₹1170 (c) ₹7670 (d) ₹1560

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