Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 146 · 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 ₹4500 for 5 years is ₹2700. What is the rate per year? (a) 13% (b) 11% (c) 60% (d) 12%
2. 2.The simple interest on ₹8000 for 4 years is ₹1920. What is the rate per year? (a) 24% (b) 7% (c) 5% (d) 6%
3. 3.The simple interest on ₹8500 for 2 years is ₹1870. What is the rate per year? (a) 10% (b) 11% (c) 12% (d) 22%
4. 4.The simple interest on ₹4000 for 4 years is ₹1760. What is the rate per year? (a) 10% (b) 44% (c) 12% (d) 11%
5. 5.What is the simple interest on ₹9500 at 5% per year for 2 years? (a) ₹475 (b) ₹1425 (c) ₹10450 (d) ₹950
6. 6.In how many years will ₹4500 earn ₹360 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
7. 7.The simple interest on ₹3000 for 4 years is ₹360. What is the rate per year? (a) 12% (b) 2% (c) 3% (d) 4%
8. 8.The simple interest on ₹7000 for 5 years is ₹700. What is the rate per year? (a) 3% (b) 2% (c) 10% (d) 1%
9. 9.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
10. 10.₹3500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹490 (b) ₹3745 (c) ₹3990 (d) ₹4235
11. 11.In how many years will ₹5000 earn ₹3000 simple interest at 12% per year? (a) 5 years (b) 4 years (c) 10 years (d) 6 years
12. 12.The simple interest on ₹2000 for 3 years is ₹360. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 18%
13. 13.What is the simple interest on ₹7000 at 9% per year for 4 years? (a) ₹630 (b) ₹2520 (c) ₹9520 (d) ₹3150
14. 14.₹4500 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹4860 (b) ₹360 (c) ₹4590 (d) ₹4950
15. 15.₹5500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6105 (b) ₹9130 (c) ₹8525 (d) ₹3025
16. 16.₹4000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹4960 (b) ₹4160 (c) ₹800 (d) ₹4800
17. 17.₹3000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹450 (b) ₹3090 (c) ₹3540 (d) ₹3450
18. 18.In how many years will ₹3000 earn ₹360 simple interest at 6% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
19. 19.What is the simple interest on ₹2000 at 8% per year for 5 years? (a) ₹160 (b) ₹2800 (c) ₹960 (d) ₹800
20. 20.The simple interest on ₹3500 for 3 years is ₹210. What is the rate per year? (a) 3% (b) 2% (c) 1% (d) 6%
21. 21.The simple interest on ₹6500 for 2 years is ₹1430. What is the rate per year? (a) 10% (b) 22% (c) 11% (d) 12%
22. 22.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2700 (b) ₹1000 (c) ₹3700 (d) ₹3500
23. 23.₹6500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹1755 (b) ₹8255 (c) ₹7085 (d) ₹8840
24. 24.The simple interest on ₹9500 for 5 years is ₹2375. What is the rate per year? (a) 5% (b) 25% (c) 4% (d) 6%
25. 25.₹5000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹7100 (b) ₹6750 (c) ₹5350 (d) ₹1750
26. 26.What is the simple interest on ₹9000 at 9% per year for 2 years? (a) ₹10620 (b) ₹1620 (c) ₹810 (d) ₹2430
27. 27.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹1155 (c) ₹4655 (d) ₹3885
28. 28.In how many years will ₹7000 earn ₹840 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
29. 29.The simple interest on ₹2500 for 3 years is ₹900. What is the rate per year? (a) 11% (b) 13% (c) 36% (d) 12%
30. 30.What is the simple interest on ₹4000 at 10% per year for 4 years? (a) ₹400 (b) ₹2000 (c) ₹1600 (d) ₹5600
31. 31.What is the simple interest on ₹7000 at 8% per year for 3 years? (a) ₹2240 (b) ₹560 (c) ₹8680 (d) ₹1680
32. 32.The simple interest on ₹3500 for 2 years is ₹140. What is the rate per year? (a) 3% (b) 4% (c) 1% (d) 2%
33. 33.The simple interest on ₹9500 for 4 years is ₹2280. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 24%
34. 34.What is the simple interest on ₹10000 at 7% per year for 4 years? (a) ₹3500 (b) ₹700 (c) ₹2800 (d) ₹12800
35. 35.In how many years will ₹1500 earn ₹270 simple interest at 6% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
36. 36.What is the simple interest on ₹10000 at 2% per year for 5 years? (a) ₹200 (b) ₹1200 (c) ₹1000 (d) ₹11000
37. 37.In how many years will ₹4500 earn ₹2160 simple interest at 12% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
38. 38.What is the simple interest on ₹5000 at 2% per year for 4 years? (a) ₹5400 (b) ₹100 (c) ₹500 (d) ₹400
39. 39.What is the simple interest on ₹6000 at 5% per year for 5 years? (a) ₹1800 (b) ₹1500 (c) ₹300 (d) ₹7500
40. 40.What is the simple interest on ₹2000 at 5% per year for 4 years? (a) ₹100 (b) ₹2400 (c) ₹400 (d) ₹500

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