Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 296 · 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 ₹7500 for 4 years is ₹1800. What is the rate per year? (a) 7% (b) 6% (c) 24% (d) 5%
2. 2.In how many years will ₹1500 earn ₹375 simple interest at 5% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
3. 3.In how many years will ₹4500 earn ₹270 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
4. 4.What is the simple interest on ₹1000 at 10% per year for 4 years? (a) ₹100 (b) ₹400 (c) ₹1400 (d) ₹500
5. 5.₹8000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1920 (b) ₹8640 (c) ₹9920 (d) ₹10560
6. 6.The simple interest on ₹8500 for 2 years is ₹1020. What is the rate per year? (a) 5% (b) 6% (c) 12% (d) 7%
7. 7.What is the simple interest on ₹2000 at 12% per year for 3 years? (a) ₹720 (b) ₹2720 (c) ₹960 (d) ₹240
8. 8.The simple interest on ₹5500 for 2 years is ₹440. What is the rate per year? (a) 8% (b) 5% (c) 3% (d) 4%
9. 9.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3480 (b) ₹3120 (c) ₹480 (d) ₹3600
10. 10.The simple interest on ₹7000 for 5 years is ₹1750. What is the rate per year? (a) 25% (b) 6% (c) 4% (d) 5%
11. 11.₹4500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹6075 (b) ₹1260 (c) ₹5760 (d) ₹4815
12. 12.₹8500 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹10200 (b) ₹10625 (c) ₹1700 (d) ₹8925
13. 13.The simple interest on ₹6000 for 3 years is ₹1080. What is the rate per year? (a) 18% (b) 7% (c) 6% (d) 5%
14. 14.The simple interest on ₹3500 for 3 years is ₹420. What is the rate per year? (a) 5% (b) 12% (c) 4% (d) 3%
15. 15.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹11200 (b) ₹4800 (c) ₹16000 (d) ₹14800
16. 16.What is the simple interest on ₹5500 at 4% per year for 3 years? (a) ₹6160 (b) ₹880 (c) ₹660 (d) ₹220
17. 17.The simple interest on ₹4000 for 2 years is ₹560. What is the rate per year? (a) 6% (b) 14% (c) 7% (d) 8%
18. 18.The simple interest on ₹7500 for 3 years is ₹450. What is the rate per year? (a) 3% (b) 1% (c) 6% (d) 2%
19. 19.The simple interest on ₹5500 for 5 years is ₹1925. What is the rate per year? (a) 8% (b) 7% (c) 35% (d) 6%
20. 20.In how many years will ₹6000 earn ₹480 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
21. 21.In how many years will ₹2500 earn ₹150 simple interest at 2% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
22. 22.What is the simple interest on ₹1500 at 9% per year for 2 years? (a) ₹1770 (b) ₹135 (c) ₹405 (d) ₹270
23. 23.₹7000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1400 (b) ₹7280 (c) ₹8680 (d) ₹8400
24. 24.In how many years will ₹2500 earn ₹150 simple interest at 3% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
25. 25.In how many years will ₹1000 earn ₹80 simple interest at 2% per year? (a) 5 years (b) 4 years (c) 3 years (d) 8 years
26. 26.₹5500 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹6160 (b) ₹6050 (c) ₹5610 (d) ₹550
27. 27.In how many years will ₹9500 earn ₹380 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 1 year
28. 28.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹4655 (b) ₹3885 (c) ₹5040 (d) ₹1155
29. 29.What is the simple interest on ₹1000 at 5% per year for 5 years? (a) ₹300 (b) ₹1250 (c) ₹50 (d) ₹250
30. 30.In how many years will ₹1500 earn ₹240 simple interest at 8% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
31. 31.₹5500 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹6105 (b) ₹9130 (c) ₹3025 (d) ₹8525
32. 32.What is the simple interest on ₹1000 at 11% per year for 5 years? (a) ₹660 (b) ₹110 (c) ₹550 (d) ₹1550
33. 33.What is the simple interest on ₹6000 at 7% per year for 3 years? (a) ₹7260 (b) ₹1260 (c) ₹1680 (d) ₹420
34. 34.The simple interest on ₹8500 for 5 years is ₹4250. What is the rate per year? (a) 10% (b) 9% (c) 11% (d) 50%
35. 35.The simple interest on ₹8500 for 5 years is ₹2125. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 25%
36. 36.In how many years will ₹8500 earn ₹1190 simple interest at 7% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
37. 37.In how many years will ₹6000 earn ₹3000 simple interest at 10% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
38. 38.What is the simple interest on ₹4500 at 5% per year for 2 years? (a) ₹450 (b) ₹675 (c) ₹225 (d) ₹4950
39. 39.The simple interest on ₹2500 for 3 years is ₹450. What is the rate per year? (a) 18% (b) 7% (c) 5% (d) 6%
40. 40.What is the simple interest on ₹2500 at 5% per year for 3 years? (a) ₹125 (b) ₹2875 (c) ₹500 (d) ₹375

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