Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 49 · 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 ₹2500 at 4% per year for 3 years? (a) ₹400 (b) ₹300 (c) ₹2800 (d) ₹100
2. 2.In how many years will ₹3000 earn ₹270 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
3. 3.The simple interest on ₹5500 for 4 years is ₹440. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 8%
4. 4.₹9500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹11780 (b) ₹11210 (c) ₹1710 (d) ₹10070
5. 5.What is the simple interest on ₹1000 at 5% per year for 3 years? (a) ₹150 (b) ₹50 (c) ₹1150 (d) ₹200
6. 6.₹3000 is invested at 9% per year simple interest. What is the amount after 4 years? (a) ₹3270 (b) ₹1080 (c) ₹4350 (d) ₹4080
7. 7.In how many years will ₹10000 earn ₹2100 simple interest at 7% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
8. 8.What is the simple interest on ₹3000 at 5% per year for 3 years? (a) ₹600 (b) ₹450 (c) ₹3450 (d) ₹150
9. 9.The simple interest on ₹2000 for 3 years is ₹720. What is the rate per year? (a) 36% (b) 11% (c) 13% (d) 12%
10. 10.₹4000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹4960 (b) ₹800 (c) ₹4800 (d) ₹4160
11. 11.₹2500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹2600 (b) ₹3100 (c) ₹500 (d) ₹3000
12. 12.The simple interest on ₹8500 for 3 years is ₹765. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 9%
13. 13.What is the simple interest on ₹5500 at 11% per year for 5 years? (a) ₹605 (b) ₹3630 (c) ₹8525 (d) ₹3025
14. 14.The simple interest on ₹8500 for 3 years is ₹1785. What is the rate per year? (a) 21% (b) 8% (c) 6% (d) 7%
15. 15.What is the simple interest on ₹7000 at 12% per year for 3 years? (a) ₹3360 (b) ₹2520 (c) ₹9520 (d) ₹840
16. 16.What is the simple interest on ₹10000 at 11% per year for 3 years? (a) ₹1100 (b) ₹13300 (c) ₹3300 (d) ₹4400
17. 17.In how many years will ₹1500 earn ₹450 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
18. 18.What is the simple interest on ₹9500 at 2% per year for 2 years? (a) ₹190 (b) ₹9880 (c) ₹380 (d) ₹570
19. 19.What is the simple interest on ₹3500 at 5% per year for 4 years? (a) ₹700 (b) ₹175 (c) ₹4200 (d) ₹875
20. 20.In how many years will ₹3500 earn ₹700 simple interest at 5% per year? (a) 8 years (b) 5 years (c) 4 years (d) 3 years
21. 21.What is the simple interest on ₹8000 at 2% per year for 2 years? (a) ₹8320 (b) ₹160 (c) ₹480 (d) ₹320
22. 22.In how many years will ₹9500 earn ₹3800 simple interest at 8% per year? (a) 5 years (b) 4 years (c) 6 years (d) 10 years
23. 23.What is the simple interest on ₹7000 at 3% per year for 2 years? (a) ₹210 (b) ₹7420 (c) ₹420 (d) ₹630
24. 24.In how many years will ₹1500 earn ₹300 simple interest at 10% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
25. 25.In how many years will ₹8000 earn ₹3200 simple interest at 8% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
26. 26.What is the simple interest on ₹7000 at 9% per year for 5 years? (a) ₹630 (b) ₹10150 (c) ₹3150 (d) ₹3780
27. 27.The simple interest on ₹6000 for 4 years is ₹960. What is the rate per year? (a) 16% (b) 5% (c) 3% (d) 4%
28. 28.The simple interest on ₹2500 for 3 years is ₹900. What is the rate per year? (a) 13% (b) 11% (c) 36% (d) 12%
29. 29.₹8500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8840 (b) ₹10200 (c) ₹9860 (d) ₹1360
30. 30.What is the simple interest on ₹3000 at 9% per year for 3 years? (a) ₹3810 (b) ₹270 (c) ₹1080 (d) ₹810
31. 31.What is the simple interest on ₹1500 at 12% per year for 2 years? (a) ₹360 (b) ₹180 (c) ₹540 (d) ₹1860
32. 32.The simple interest on ₹2000 for 2 years is ₹240. What is the rate per year? (a) 7% (b) 12% (c) 5% (d) 6%
33. 33.What is the simple interest on ₹8000 at 8% per year for 4 years? (a) ₹10560 (b) ₹640 (c) ₹2560 (d) ₹3200
34. 34.What is the simple interest on ₹3500 at 11% per year for 2 years? (a) ₹385 (b) ₹4270 (c) ₹1155 (d) ₹770
35. 35.The simple interest on ₹7000 for 2 years is ₹1680. What is the rate per year? (a) 12% (b) 24% (c) 13% (d) 11%
36. 36.The simple interest on ₹4500 for 2 years is ₹270. What is the rate per year? (a) 6% (b) 4% (c) 3% (d) 2%
37. 37.What is the simple interest on ₹4000 at 9% per year for 3 years? (a) ₹1440 (b) ₹1080 (c) ₹360 (d) ₹5080
38. 38.In how many years will ₹2500 earn ₹250 simple interest at 5% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
39. 39.The simple interest on ₹9500 for 2 years is ₹760. What is the rate per year? (a) 8% (b) 4% (c) 3% (d) 5%
40. 40.The simple interest on ₹2500 for 2 years is ₹400. What is the rate per year? (a) 8% (b) 9% (c) 7% (d) 16%

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