Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 465 · 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 4% per year simple interest. What is the amount after 3 years? (a) ₹840 (b) ₹8120 (c) ₹7840 (d) ₹7280
2. 2.What is the simple interest on ₹4000 at 7% per year for 5 years? (a) ₹1400 (b) ₹5400 (c) ₹280 (d) ₹1680
3. 3.In how many years will ₹9000 earn ₹1350 simple interest at 3% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
4. 4.The simple interest on ₹2000 for 3 years is ₹540. What is the rate per year? (a) 9% (b) 8% (c) 10% (d) 27%
5. 5.The simple interest on ₹5500 for 4 years is ₹2640. What is the rate per year? (a) 13% (b) 48% (c) 11% (d) 12%
6. 6.What is the simple interest on ₹5500 at 4% per year for 2 years? (a) ₹220 (b) ₹660 (c) ₹440 (d) ₹5940
7. 7.The simple interest on ₹2500 for 4 years is ₹700. What is the rate per year? (a) 7% (b) 8% (c) 28% (d) 6%
8. 8.The simple interest on ₹2500 for 3 years is ₹375. What is the rate per year? (a) 6% (b) 4% (c) 15% (d) 5%
9. 9.In how many years will ₹2000 earn ₹1200 simple interest at 12% per year? (a) 10 years (b) 5 years (c) 6 years (d) 4 years
10. 10.₹9000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹10080 (b) ₹1080 (c) ₹10620 (d) ₹9540
11. 11.What is the simple interest on ₹3500 at 5% per year for 2 years? (a) ₹3850 (b) ₹350 (c) ₹175 (d) ₹525
12. 12.The simple interest on ₹8000 for 2 years is ₹1120. What is the rate per year? (a) 14% (b) 8% (c) 6% (d) 7%
13. 13.₹6000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹6720 (b) ₹7440 (c) ₹8160 (d) ₹1440
14. 14.What is the simple interest on ₹2500 at 12% per year for 3 years? (a) ₹3400 (b) ₹1200 (c) ₹300 (d) ₹900
15. 15.The simple interest on ₹1000 for 5 years is ₹250. What is the rate per year? (a) 6% (b) 4% (c) 5% (d) 25%
16. 16.What is the simple interest on ₹9500 at 3% per year for 5 years? (a) ₹1710 (b) ₹10925 (c) ₹1425 (d) ₹285
17. 17.The simple interest on ₹6000 for 2 years is ₹240. What is the rate per year? (a) 1% (b) 3% (c) 4% (d) 2%
18. 18.₹3000 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹3120 (b) ₹3480 (c) ₹3600 (d) ₹480
19. 19.What is the simple interest on ₹5500 at 10% per year for 4 years? (a) ₹550 (b) ₹2200 (c) ₹7700 (d) ₹2750
20. 20.₹7000 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹8260 (b) ₹8890 (c) ₹1260 (d) ₹7630
21. 21.What is the simple interest on ₹8500 at 11% per year for 2 years? (a) ₹2805 (b) ₹1870 (c) ₹935 (d) ₹10370
22. 22.The simple interest on ₹5500 for 2 years is ₹1320. What is the rate per year? (a) 12% (b) 13% (c) 24% (d) 11%
23. 23.The simple interest on ₹3000 for 4 years is ₹600. What is the rate per year? (a) 5% (b) 4% (c) 6% (d) 20%
24. 24.The simple interest on ₹5000 for 5 years is ₹1250. What is the rate per year? (a) 5% (b) 4% (c) 25% (d) 6%
25. 25.The simple interest on ₹5000 for 5 years is ₹750. What is the rate per year? (a) 4% (b) 3% (c) 2% (d) 15%
26. 26.The simple interest on ₹6000 for 5 years is ₹3000. What is the rate per year? (a) 11% (b) 50% (c) 9% (d) 10%
27. 27.₹9000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹9450 (b) ₹10800 (c) ₹11250 (d) ₹1800
28. 28.What is the simple interest on ₹5000 at 2% per year for 4 years? (a) ₹100 (b) ₹5400 (c) ₹400 (d) ₹500
29. 29.In how many years will ₹3500 earn ₹280 simple interest at 2% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
30. 30.₹3000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹3330 (b) ₹4320 (c) ₹3990 (d) ₹990
31. 31.In how many years will ₹6500 earn ₹390 simple interest at 2% per year? (a) 3 years (b) 2 years (c) 6 years (d) 4 years
32. 32.₹6500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹7670 (b) ₹6890 (c) ₹1170 (d) ₹8060
33. 33.What is the simple interest on ₹6000 at 5% per year for 5 years? (a) ₹300 (b) ₹1800 (c) ₹7500 (d) ₹1500
34. 34.₹1000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1080 (b) ₹80 (c) ₹1120 (d) ₹1040
35. 35.In how many years will ₹5500 earn ₹1320 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
36. 36.₹2000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹2640 (b) ₹2800 (c) ₹640 (d) ₹2160
37. 37.What is the simple interest on ₹8500 at 5% per year for 5 years? (a) ₹10625 (b) ₹2550 (c) ₹2125 (d) ₹425
38. 38.In how many years will ₹6500 earn ₹2340 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 4 years (d) 6 years
39. 39.The simple interest on ₹4500 for 4 years is ₹900. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 20%
40. 40.What is the simple interest on ₹6500 at 8% per year for 4 years? (a) ₹520 (b) ₹8580 (c) ₹2600 (d) ₹2080

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