Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 42 · 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.₹7000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹9520 (b) ₹1680 (c) ₹8680 (d) ₹7840
2. 2.In how many years will ₹6000 earn ₹900 simple interest at 5% per year? (a) 3 years (b) 6 years (c) 4 years (d) 2 years
3. 3.What is the simple interest on ₹10000 at 11% per year for 3 years? (a) ₹3300 (b) ₹1100 (c) ₹13300 (d) ₹4400
4. 4.What is the simple interest on ₹8000 at 11% per year for 3 years? (a) ₹2640 (b) ₹880 (c) ₹3520 (d) ₹10640
5. 5.₹2500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹450 (b) ₹2725 (c) ₹3175 (d) ₹2950
6. 6.The simple interest on ₹4500 for 4 years is ₹2160. What is the rate per year? (a) 13% (b) 11% (c) 48% (d) 12%
7. 7.In how many years will ₹2000 earn ₹400 simple interest at 4% per year? (a) 10 years (b) 4 years (c) 5 years (d) 6 years
8. 8.₹5000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹900 (b) ₹5300 (c) ₹5900 (d) ₹6200
9. 9.In how many years will ₹1500 earn ₹240 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
10. 10.What is the simple interest on ₹7500 at 3% per year for 3 years? (a) ₹8175 (b) ₹225 (c) ₹675 (d) ₹900
11. 11.₹2000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹2120 (b) ₹360 (c) ₹2480 (d) ₹2360
12. 12.What is the simple interest on ₹1500 at 10% per year for 5 years? (a) ₹2250 (b) ₹900 (c) ₹150 (d) ₹750
13. 13.The simple interest on ₹6500 for 2 years is ₹910. What is the rate per year? (a) 14% (b) 6% (c) 8% (d) 7%
14. 14.In how many years will ₹4500 earn ₹405 simple interest at 3% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
15. 15.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8720 (b) ₹8480 (c) ₹480 (d) ₹8240
16. 16.The simple interest on ₹2000 for 3 years is ₹540. What is the rate per year? (a) 8% (b) 10% (c) 9% (d) 27%
17. 17.₹2000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹2100 (b) ₹2600 (c) ₹2500 (d) ₹500
18. 18.What is the simple interest on ₹2500 at 11% per year for 5 years? (a) ₹275 (b) ₹3875 (c) ₹1650 (d) ₹1375
19. 19.₹1500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹1905 (b) ₹1635 (c) ₹270 (d) ₹1770
20. 20.₹9000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹9180 (b) ₹10080 (c) ₹900 (d) ₹9900
21. 21.In how many years will ₹7000 earn ₹1120 simple interest at 8% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
22. 22.What is the simple interest on ₹5000 at 5% per year for 2 years? (a) ₹5500 (b) ₹500 (c) ₹250 (d) ₹750
23. 23.In how many years will ₹9000 earn ₹2160 simple interest at 8% per year? (a) 6 years (b) 3 years (c) 2 years (d) 4 years
24. 24.What is the simple interest on ₹9500 at 2% per year for 4 years? (a) ₹190 (b) ₹950 (c) ₹10260 (d) ₹760
25. 25.The simple interest on ₹1500 for 5 years is ₹900. What is the rate per year? (a) 13% (b) 11% (c) 60% (d) 12%
26. 26.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 5% (b) 12% (c) 3% (d) 4%
27. 27.In how many years will ₹10000 earn ₹2000 simple interest at 4% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
28. 28.₹8000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹10240 (b) ₹8560 (c) ₹1680 (d) ₹9680
29. 29.What is the simple interest on ₹7500 at 6% per year for 5 years? (a) ₹2700 (b) ₹9750 (c) ₹450 (d) ₹2250
30. 30.What is the simple interest on ₹3500 at 10% per year for 2 years? (a) ₹1050 (b) ₹350 (c) ₹4200 (d) ₹700
31. 31.In how many years will ₹6500 earn ₹390 simple interest at 3% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
32. 32.In how many years will ₹6500 earn ₹520 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 8 years (d) 3 years
33. 33.The simple interest on ₹9500 for 5 years is ₹950. What is the rate per year? (a) 10% (b) 1% (c) 2% (d) 3%
34. 34.In how many years will ₹10000 earn ₹3300 simple interest at 11% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years
35. 35.The simple interest on ₹3500 for 5 years is ₹1225. What is the rate per year? (a) 7% (b) 6% (c) 8% (d) 35%
36. 36.What is the simple interest on ₹3500 at 3% per year for 2 years? (a) ₹105 (b) ₹210 (c) ₹315 (d) ₹3710
37. 37.In how many years will ₹9000 earn ₹2430 simple interest at 9% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
38. 38.In how many years will ₹1000 earn ₹180 simple interest at 6% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
39. 39.In how many years will ₹2000 earn ₹480 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
40. 40.The simple interest on ₹4000 for 4 years is ₹480. What is the rate per year? (a) 4% (b) 2% (c) 3% (d) 12%

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