Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 92 · 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.In how many years will ₹3000 earn ₹600 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
2. 2.₹6500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹8840 (b) ₹1950 (c) ₹8450 (d) ₹6890
3. 3.In how many years will ₹1000 earn ₹160 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
4. 4.What is the simple interest on ₹1500 at 6% per year for 5 years? (a) ₹540 (b) ₹90 (c) ₹1950 (d) ₹450
5. 5.₹4000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹320 (b) ₹4480 (c) ₹4160 (d) ₹4320
6. 6.What is the simple interest on ₹2000 at 5% per year for 2 years? (a) ₹2200 (b) ₹100 (c) ₹300 (d) ₹200
7. 7.What is the simple interest on ₹5000 at 9% per year for 3 years? (a) ₹1350 (b) ₹450 (c) ₹1800 (d) ₹6350
8. 8.The simple interest on ₹1000 for 3 years is ₹120. What is the rate per year? (a) 12% (b) 4% (c) 3% (d) 5%
9. 9.What is the simple interest on ₹3500 at 3% per year for 3 years? (a) ₹3815 (b) ₹420 (c) ₹105 (d) ₹315
10. 10.The simple interest on ₹10000 for 5 years is ₹1000. What is the rate per year? (a) 1% (b) 10% (c) 2% (d) 3%
11. 11.The simple interest on ₹2000 for 2 years is ₹200. What is the rate per year? (a) 10% (b) 6% (c) 5% (d) 4%
12. 12.₹9000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹9720 (b) ₹2880 (c) ₹11880 (d) ₹12600
13. 13.In how many years will ₹1000 earn ₹100 simple interest at 5% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
14. 14.In how many years will ₹6000 earn ₹960 simple interest at 4% per year? (a) 5 years (b) 8 years (c) 4 years (d) 3 years
15. 15.₹6500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹7020 (b) ₹520 (c) ₹6760 (d) ₹7280
16. 16.In how many years will ₹3000 earn ₹1350 simple interest at 9% per year? (a) 10 years (b) 4 years (c) 6 years (d) 5 years
17. 17.What is the simple interest on ₹10000 at 6% per year for 5 years? (a) ₹3600 (b) ₹600 (c) ₹13000 (d) ₹3000
18. 18.What is the simple interest on ₹1500 at 9% per year for 3 years? (a) ₹540 (b) ₹405 (c) ₹1905 (d) ₹135
19. 19.₹5000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹1750 (b) ₹6750 (c) ₹5350 (d) ₹7100
20. 20.In how many years will ₹9000 earn ₹1260 simple interest at 7% per year? (a) 3 years (b) 4 years (c) 2 years (d) 1 year
21. 21.What is the simple interest on ₹5500 at 8% per year for 4 years? (a) ₹2200 (b) ₹7260 (c) ₹1760 (d) ₹440
22. 22.What is the simple interest on ₹1500 at 3% per year for 3 years? (a) ₹135 (b) ₹180 (c) ₹1635 (d) ₹45
23. 23.What is the simple interest on ₹6500 at 12% per year for 2 years? (a) ₹1560 (b) ₹780 (c) ₹2340 (d) ₹8060
24. 24.The simple interest on ₹3000 for 5 years is ₹1800. What is the rate per year? (a) 60% (b) 13% (c) 12% (d) 11%
25. 25.₹2000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹2320 (b) ₹240 (c) ₹2080 (d) ₹2240
26. 26.In how many years will ₹9500 earn ₹950 simple interest at 5% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
27. 27.What is the simple interest on ₹7000 at 12% per year for 2 years? (a) ₹8680 (b) ₹2520 (c) ₹840 (d) ₹1680
28. 28.The simple interest on ₹3000 for 2 years is ₹660. What is the rate per year? (a) 11% (b) 10% (c) 22% (d) 12%
29. 29.What is the simple interest on ₹8500 at 3% per year for 2 years? (a) ₹255 (b) ₹510 (c) ₹765 (d) ₹9010
30. 30.What is the simple interest on ₹1500 at 4% per year for 4 years? (a) ₹1740 (b) ₹60 (c) ₹300 (d) ₹240
31. 31.In how many years will ₹8500 earn ₹3400 simple interest at 10% per year? (a) 4 years (b) 5 years (c) 3 years (d) 8 years
32. 32.The simple interest on ₹9000 for 2 years is ₹720. What is the rate per year? (a) 5% (b) 8% (c) 3% (d) 4%
33. 33.₹10000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹11800 (c) ₹11500 (d) ₹10300
34. 34.The simple interest on ₹8500 for 3 years is ₹1530. What is the rate per year? (a) 18% (b) 6% (c) 7% (d) 5%
35. 35.₹9500 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹11210 (b) ₹9785 (c) ₹1425 (d) ₹10925
36. 36.In how many years will ₹3000 earn ₹240 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 1 year (d) 3 years
37. 37.The simple interest on ₹7500 for 2 years is ₹750. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 10%
38. 38.The simple interest on ₹4500 for 4 years is ₹900. What is the rate per year? (a) 20% (b) 5% (c) 4% (d) 6%
39. 39.What is the simple interest on ₹1000 at 9% per year for 4 years? (a) ₹1360 (b) ₹450 (c) ₹90 (d) ₹360
40. 40.What is the simple interest on ₹7500 at 5% per year for 4 years? (a) ₹1875 (b) ₹9000 (c) ₹1500 (d) ₹375

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