Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 142 · 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 ₹2000 for 4 years is ₹240. What is the rate per year? (a) 3% (b) 2% (c) 12% (d) 4%
2. 2.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 3 years (b) 8 years (c) 4 years (d) 5 years
3. 3.₹5000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹7200 (b) ₹2200 (c) ₹7750 (d) ₹5550
4. 4.What is the simple interest on ₹2500 at 11% per year for 5 years? (a) ₹1650 (b) ₹1375 (c) ₹3875 (d) ₹275
5. 5.₹3000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹4500 (b) ₹4200 (c) ₹3300 (d) ₹1200
6. 6.The simple interest on ₹3500 for 4 years is ₹280. What is the rate per year? (a) 1% (b) 2% (c) 3% (d) 8%
7. 7.What is the simple interest on ₹1500 at 4% per year for 3 years? (a) ₹1680 (b) ₹240 (c) ₹180 (d) ₹60
8. 8.₹7500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹600 (b) ₹8400 (c) ₹7800 (d) ₹8100
9. 9.What is the simple interest on ₹1500 at 9% per year for 3 years? (a) ₹135 (b) ₹1905 (c) ₹540 (d) ₹405
10. 10.What is the simple interest on ₹2500 at 2% per year for 3 years? (a) ₹150 (b) ₹50 (c) ₹2650 (d) ₹200
11. 11.₹6000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2880 (b) ₹9600 (c) ₹6720 (d) ₹8880
12. 12.The simple interest on ₹9500 for 4 years is ₹2660. What is the rate per year? (a) 8% (b) 6% (c) 28% (d) 7%
13. 13.In how many years will ₹5500 earn ₹1100 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
14. 14.What is the simple interest on ₹3500 at 6% per year for 5 years? (a) ₹210 (b) ₹4550 (c) ₹1260 (d) ₹1050
15. 15.₹8500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹9095 (b) ₹11475 (c) ₹12070 (d) ₹2975
16. 16.₹10000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1800 (b) ₹11800 (c) ₹10900 (d) ₹12700
17. 17.In how many years will ₹9500 earn ₹1140 simple interest at 6% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
18. 18.In how many years will ₹10000 earn ₹1200 simple interest at 3% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
19. 19.₹3000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹3180 (b) ₹3060 (c) ₹3120 (d) ₹120
20. 20.The simple interest on ₹8500 for 2 years is ₹510. What is the rate per year? (a) 6% (b) 4% (c) 3% (d) 2%
21. 21.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 6% (b) 4% (c) 20% (d) 5%
22. 22.What is the simple interest on ₹1000 at 12% per year for 5 years? (a) ₹1600 (b) ₹600 (c) ₹720 (d) ₹120
23. 23.The simple interest on ₹3500 for 5 years is ₹700. What is the rate per year? (a) 5% (b) 20% (c) 4% (d) 3%
24. 24.In how many years will ₹1000 earn ₹120 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
25. 25.₹7000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹7420 (b) ₹2100 (c) ₹9520 (d) ₹9100
26. 26.₹10000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹10800 (b) ₹1600 (c) ₹12400 (d) ₹11600
27. 27.What is the simple interest on ₹8000 at 8% per year for 5 years? (a) ₹3840 (b) ₹3200 (c) ₹11200 (d) ₹640
28. 28.₹1500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹270 (b) ₹1770 (c) ₹1860 (d) ₹1590
29. 29.What is the simple interest on ₹3000 at 12% per year for 3 years? (a) ₹1440 (b) ₹360 (c) ₹1080 (d) ₹4080
30. 30.The simple interest on ₹4500 for 4 years is ₹1800. What is the rate per year? (a) 10% (b) 9% (c) 40% (d) 11%
31. 31.What is the simple interest on ₹3000 at 9% per year for 2 years? (a) ₹540 (b) ₹3540 (c) ₹270 (d) ₹810
32. 32.₹8500 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹12325 (b) ₹3060 (c) ₹11560 (d) ₹9265
33. 33.₹6000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹6120 (b) ₹600 (c) ₹6720 (d) ₹6600
34. 34.What is the simple interest on ₹7000 at 12% per year for 5 years? (a) ₹11200 (b) ₹840 (c) ₹5040 (d) ₹4200
35. 35.The simple interest on ₹2500 for 5 years is ₹375. What is the rate per year? (a) 15% (b) 2% (c) 3% (d) 4%
36. 36.The simple interest on ₹9500 for 5 years is ₹3325. What is the rate per year? (a) 35% (b) 7% (c) 6% (d) 8%
37. 37.₹9500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1425 (b) ₹10925 (c) ₹11210 (d) ₹9785
38. 38.₹7500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹11625 (b) ₹8325 (c) ₹12450 (d) ₹4125
39. 39.The simple interest on ₹1500 for 3 years is ₹315. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 21%
40. 40.₹8500 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹5100 (b) ₹14620 (c) ₹9520 (d) ₹13600

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