Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 62 · 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 ₹6000 earn ₹240 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
2. 2.₹6500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1560 (b) ₹8580 (c) ₹8060 (d) ₹7020
3. 3.The simple interest on ₹4500 for 3 years is ₹1080. What is the rate per year? (a) 8% (b) 24% (c) 7% (d) 9%
4. 4.The simple interest on ₹9500 for 5 years is ₹950. What is the rate per year? (a) 3% (b) 1% (c) 10% (d) 2%
5. 5.What is the simple interest on ₹2000 at 7% per year for 2 years? (a) ₹2280 (b) ₹140 (c) ₹280 (d) ₹420
6. 6.What is the simple interest on ₹1500 at 7% per year for 2 years? (a) ₹1710 (b) ₹105 (c) ₹210 (d) ₹315
7. 7.₹1500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1740 (b) ₹240 (c) ₹1860 (d) ₹1620
8. 8.The simple interest on ₹2500 for 5 years is ₹250. What is the rate per year? (a) 10% (b) 2% (c) 3% (d) 1%
9. 9.What is the simple interest on ₹8500 at 10% per year for 2 years? (a) ₹2550 (b) ₹10200 (c) ₹850 (d) ₹1700
10. 10.In how many years will ₹3500 earn ₹1540 simple interest at 11% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
11. 11.₹6500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹7085 (b) ₹1755 (c) ₹8255 (d) ₹8840
12. 12.In how many years will ₹8500 earn ₹2040 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
13. 13.₹3500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹3780 (b) ₹840 (c) ₹4340 (d) ₹4620
14. 14.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹5040 (b) ₹3885 (c) ₹1155 (d) ₹4655
15. 15.What is the simple interest on ₹3000 at 10% per year for 5 years? (a) ₹4500 (b) ₹1500 (c) ₹300 (d) ₹1800
16. 16.The simple interest on ₹7500 for 4 years is ₹2700. What is the rate per year? (a) 10% (b) 36% (c) 8% (d) 9%
17. 17.In how many years will ₹9500 earn ₹950 simple interest at 5% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
18. 18.What is the simple interest on ₹7000 at 2% per year for 2 years? (a) ₹7280 (b) ₹280 (c) ₹420 (d) ₹140
19. 19.What is the simple interest on ₹7000 at 6% per year for 3 years? (a) ₹420 (b) ₹8260 (c) ₹1680 (d) ₹1260
20. 20.₹4000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹880 (b) ₹4880 (c) ₹4440 (d) ₹5320
21. 21.The simple interest on ₹3500 for 2 years is ₹700. What is the rate per year? (a) 9% (b) 10% (c) 20% (d) 11%
22. 22.In how many years will ₹3500 earn ₹1400 simple interest at 8% per year? (a) 10 years (b) 5 years (c) 4 years (d) 6 years
23. 23.₹1500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹1605 (b) ₹1815 (c) ₹210 (d) ₹1710
24. 24.What is the simple interest on ₹9500 at 5% per year for 5 years? (a) ₹11875 (b) ₹475 (c) ₹2850 (d) ₹2375
25. 25.In how many years will ₹8500 earn ₹1020 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
26. 26.₹3000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹360 (b) ₹3360 (c) ₹3450 (d) ₹3090
27. 27.The simple interest on ₹7000 for 2 years is ₹700. What is the rate per year? (a) 10% (b) 4% (c) 5% (d) 6%
28. 28.The simple interest on ₹3000 for 4 years is ₹1200. What is the rate per year? (a) 11% (b) 9% (c) 40% (d) 10%
29. 29.The simple interest on ₹1500 for 4 years is ₹300. What is the rate per year? (a) 6% (b) 4% (c) 20% (d) 5%
30. 30.What is the simple interest on ₹7500 at 3% per year for 4 years? (a) ₹1125 (b) ₹225 (c) ₹900 (d) ₹8400
31. 31.What is the simple interest on ₹2500 at 9% per year for 5 years? (a) ₹1125 (b) ₹3625 (c) ₹1350 (d) ₹225
32. 32.In how many years will ₹9500 earn ₹1425 simple interest at 3% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
33. 33.In how many years will ₹9500 earn ₹4750 simple interest at 10% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
34. 34.₹10000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹10500 (b) ₹12000 (c) ₹2000 (d) ₹12500
35. 35.₹6000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹7200 (b) ₹1200 (c) ₹6600 (d) ₹7800
36. 36.In how many years will ₹7500 earn ₹600 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
37. 37.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 3% (b) 1% (c) 4% (d) 2%
38. 38.In how many years will ₹5500 earn ₹1980 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
39. 39.₹9500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹9785 (b) ₹570 (c) ₹10070 (d) ₹10355
40. 40.₹6000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹7200 (b) ₹6960 (c) ₹960 (d) ₹6240

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