Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 113 · 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 ₹3000 at 2% per year for 3 years? (a) ₹180 (b) ₹60 (c) ₹3180 (d) ₹240
2. 2.The simple interest on ₹9000 for 4 years is ₹3960. What is the rate per year? (a) 44% (b) 10% (c) 11% (d) 12%
3. 3.In how many years will ₹9000 earn ₹1980 simple interest at 11% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
4. 4.₹6000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1200 (b) ₹6240 (c) ₹7440 (d) ₹7200
5. 5.What is the simple interest on ₹1000 at 11% per year for 3 years? (a) ₹330 (b) ₹110 (c) ₹1330 (d) ₹440
6. 6.What is the simple interest on ₹8500 at 7% per year for 5 years? (a) ₹11475 (b) ₹595 (c) ₹3570 (d) ₹2975
7. 7.In how many years will ₹3500 earn ₹420 simple interest at 6% per year? (a) 1 year (b) 4 years (c) 2 years (d) 3 years
8. 8.₹9000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1620 (b) ₹9810 (c) ₹11430 (d) ₹10620
9. 9.The simple interest on ₹9500 for 3 years is ₹1995. What is the rate per year? (a) 6% (b) 7% (c) 8% (d) 21%
10. 10.In how many years will ₹4500 earn ₹675 simple interest at 3% per year? (a) 4 years (b) 5 years (c) 10 years (d) 6 years
11. 11.The simple interest on ₹9500 for 2 years is ₹950. What is the rate per year? (a) 6% (b) 10% (c) 4% (d) 5%
12. 12.In how many years will ₹7500 earn ₹450 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
13. 13.In how many years will ₹8000 earn ₹640 simple interest at 4% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
14. 14.In how many years will ₹8500 earn ₹4080 simple interest at 12% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
15. 15.What is the simple interest on ₹4000 at 12% per year for 2 years? (a) ₹960 (b) ₹480 (c) ₹4960 (d) ₹1440
16. 16.The simple interest on ₹10000 for 3 years is ₹2100. What is the rate per year? (a) 21% (b) 6% (c) 7% (d) 8%
17. 17.What is the simple interest on ₹1500 at 2% per year for 5 years? (a) ₹30 (b) ₹150 (c) ₹1650 (d) ₹180
18. 18.What is the simple interest on ₹3000 at 11% per year for 2 years? (a) ₹990 (b) ₹660 (c) ₹330 (d) ₹3660
19. 19.In how many years will ₹3000 earn ₹600 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
20. 20.The simple interest on ₹7000 for 3 years is ₹630. What is the rate per year? (a) 9% (b) 3% (c) 4% (d) 2%
21. 21.The simple interest on ₹9500 for 3 years is ₹1425. What is the rate per year? (a) 5% (b) 15% (c) 4% (d) 6%
22. 22.The simple interest on ₹9000 for 3 years is ₹2970. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 33%
23. 23.The simple interest on ₹7000 for 3 years is ₹1680. What is the rate per year? (a) 24% (b) 9% (c) 7% (d) 8%
24. 24.The simple interest on ₹4000 for 2 years is ₹320. What is the rate per year? (a) 5% (b) 4% (c) 8% (d) 3%
25. 25.The simple interest on ₹7500 for 4 years is ₹1200. What is the rate per year? (a) 5% (b) 16% (c) 3% (d) 4%
26. 26.What is the simple interest on ₹5500 at 9% per year for 3 years? (a) ₹6985 (b) ₹1485 (c) ₹495 (d) ₹1980
27. 27.In how many years will ₹1500 earn ₹120 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
28. 28.What is the simple interest on ₹3000 at 8% per year for 4 years? (a) ₹240 (b) ₹960 (c) ₹3960 (d) ₹1200
29. 29.₹5000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹6750 (b) ₹6400 (c) ₹1400 (d) ₹5350
30. 30.The simple interest on ₹2500 for 2 years is ₹400. What is the rate per year? (a) 8% (b) 9% (c) 16% (d) 7%
31. 31.In how many years will ₹9500 earn ₹1710 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
32. 32.The simple interest on ₹1000 for 3 years is ₹90. What is the rate per year? (a) 3% (b) 9% (c) 2% (d) 4%
33. 33.In how many years will ₹8000 earn ₹1600 simple interest at 5% per year? (a) 5 years (b) 3 years (c) 8 years (d) 4 years
34. 34.What is the simple interest on ₹9500 at 5% per year for 5 years? (a) ₹2850 (b) ₹475 (c) ₹2375 (d) ₹11875
35. 35.In how many years will ₹1500 earn ₹225 simple interest at 5% per year? (a) 4 years (b) 6 years (c) 3 years (d) 2 years
36. 36.₹4500 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹6300 (b) ₹4950 (c) ₹1350 (d) ₹5850
37. 37.₹1500 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹1560 (b) ₹1530 (c) ₹60 (d) ₹1590
38. 38.In how many years will ₹6500 earn ₹1560 simple interest at 8% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
39. 39.What is the simple interest on ₹4500 at 6% per year for 2 years? (a) ₹270 (b) ₹810 (c) ₹540 (d) ₹5040
40. 40.In how many years will ₹7500 earn ₹900 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years

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