Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 500 · 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 ₹3500 earn ₹980 simple interest at 7% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
2. 2.In how many years will ₹1000 earn ₹450 simple interest at 9% per year? (a) 4 years (b) 10 years (c) 6 years (d) 5 years
3. 3.In how many years will ₹9000 earn ₹540 simple interest at 2% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
4. 4.The simple interest on ₹5500 for 3 years is ₹330. What is the rate per year? (a) 1% (b) 2% (c) 6% (d) 3%
5. 5.The simple interest on ₹1000 for 2 years is ₹240. What is the rate per year? (a) 11% (b) 24% (c) 13% (d) 12%
6. 6.In how many years will ₹7500 earn ₹675 simple interest at 3% per year? (a) 2 years (b) 6 years (c) 4 years (d) 3 years
7. 7.₹4000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹4360 (b) ₹6160 (c) ₹1800 (d) ₹5800
8. 8.In how many years will ₹4000 earn ₹840 simple interest at 7% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
9. 9.In how many years will ₹9500 earn ₹1710 simple interest at 6% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
10. 10.In how many years will ₹5000 earn ₹400 simple interest at 4% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
11. 11.What is the simple interest on ₹7000 at 8% per year for 2 years? (a) ₹8120 (b) ₹1680 (c) ₹560 (d) ₹1120
12. 12.What is the simple interest on ₹5000 at 3% per year for 4 years? (a) ₹600 (b) ₹5600 (c) ₹750 (d) ₹150
13. 13.What is the simple interest on ₹2000 at 8% per year for 4 years? (a) ₹2640 (b) ₹800 (c) ₹640 (d) ₹160
14. 14.In how many years will ₹3000 earn ₹1800 simple interest at 12% per year? (a) 4 years (b) 6 years (c) 10 years (d) 5 years
15. 15.The simple interest on ₹3000 for 2 years is ₹600. What is the rate per year? (a) 20% (b) 11% (c) 9% (d) 10%
16. 16.The simple interest on ₹1000 for 4 years is ₹360. What is the rate per year? (a) 36% (b) 10% (c) 9% (d) 8%
17. 17.₹6000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹6180 (b) ₹6900 (c) ₹900 (d) ₹7080
18. 18.₹5500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹6160 (b) ₹5940 (c) ₹5720 (d) ₹440
19. 19.What is the simple interest on ₹6000 at 6% per year for 5 years? (a) ₹360 (b) ₹2160 (c) ₹1800 (d) ₹7800
20. 20.What is the simple interest on ₹4500 at 3% per year for 5 years? (a) ₹810 (b) ₹5175 (c) ₹135 (d) ₹675
21. 21.What is the simple interest on ₹2000 at 8% per year for 3 years? (a) ₹480 (b) ₹160 (c) ₹640 (d) ₹2480
22. 22.What is the simple interest on ₹3500 at 9% per year for 3 years? (a) ₹4445 (b) ₹315 (c) ₹945 (d) ₹1260
23. 23.The simple interest on ₹3000 for 2 years is ₹240. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 8%
24. 24.What is the simple interest on ₹9500 at 9% per year for 3 years? (a) ₹3420 (b) ₹855 (c) ₹12065 (d) ₹2565
25. 25.What is the simple interest on ₹6000 at 8% per year for 3 years? (a) ₹1920 (b) ₹7440 (c) ₹1440 (d) ₹480
26. 26.₹1500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹2100 (c) ₹1620 (d) ₹2220
27. 27.The simple interest on ₹8000 for 2 years is ₹1600. What is the rate per year? (a) 20% (b) 11% (c) 10% (d) 9%
28. 28.₹2000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹2360 (b) ₹360 (c) ₹2480 (d) ₹2120
29. 29.₹4500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹4725 (b) ₹5175 (c) ₹4950 (d) ₹450
30. 30.What is the simple interest on ₹2000 at 2% per year for 2 years? (a) ₹80 (b) ₹120 (c) ₹40 (d) ₹2080
31. 31.What is the simple interest on ₹5500 at 2% per year for 4 years? (a) ₹110 (b) ₹5940 (c) ₹550 (d) ₹440
32. 32.₹4000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹4320 (b) ₹1280 (c) ₹5600 (d) ₹5280
33. 33.What is the simple interest on ₹2500 at 12% per year for 4 years? (a) ₹1500 (b) ₹1200 (c) ₹300 (d) ₹3700
34. 34.In how many years will ₹7000 earn ₹420 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 2 years (d) 4 years
35. 35.What is the simple interest on ₹2500 at 6% per year for 4 years? (a) ₹600 (b) ₹750 (c) ₹3100 (d) ₹150
36. 36.In how many years will ₹4500 earn ₹720 simple interest at 8% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
37. 37.In how many years will ₹1500 earn ₹300 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
38. 38.The simple interest on ₹8500 for 2 years is ₹1190. What is the rate per year? (a) 14% (b) 6% (c) 8% (d) 7%
39. 39.In how many years will ₹7000 earn ₹1260 simple interest at 6% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
40. 40.In how many years will ₹3000 earn ₹540 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year

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