Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 101 · 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 ₹10000 for 2 years is ₹400. What is the rate per year? (a) 4% (b) 1% (c) 2% (d) 3%
2. 2.₹6000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹6420 (b) ₹6840 (c) ₹7260 (d) ₹840
3. 3.What is the simple interest on ₹8000 at 4% per year for 4 years? (a) ₹320 (b) ₹1280 (c) ₹9280 (d) ₹1600
4. 4.The simple interest on ₹8500 for 5 years is ₹2550. What is the rate per year? (a) 7% (b) 6% (c) 30% (d) 5%
5. 5.In how many years will ₹7000 earn ₹1260 simple interest at 9% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
6. 6.In how many years will ₹4000 earn ₹1800 simple interest at 9% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
7. 7.₹2500 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹3700 (b) ₹2700 (c) ₹1000 (d) ₹3500
8. 8.In how many years will ₹1500 earn ₹60 simple interest at 2% per year? (a) 2 years (b) 1 year (c) 4 years (d) 3 years
9. 9.₹4500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹6300 (b) ₹1440 (c) ₹4860 (d) ₹5940
10. 10.The simple interest on ₹2500 for 5 years is ₹875. What is the rate per year? (a) 8% (b) 7% (c) 35% (d) 6%
11. 11.₹10000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹11200 (b) ₹14800 (c) ₹16000 (d) ₹4800
12. 12.₹2500 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹2575 (b) ₹2725 (c) ₹150 (d) ₹2650
13. 13.₹6000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹6480 (b) ₹960 (c) ₹7440 (d) ₹6960
14. 14.The simple interest on ₹10000 for 4 years is ₹3600. What is the rate per year? (a) 36% (b) 8% (c) 9% (d) 10%
15. 15.What is the simple interest on ₹9000 at 8% per year for 3 years? (a) ₹720 (b) ₹2160 (c) ₹2880 (d) ₹11160
16. 16.What is the simple interest on ₹9500 at 5% per year for 3 years? (a) ₹475 (b) ₹10925 (c) ₹1900 (d) ₹1425
17. 17.In how many years will ₹9000 earn ₹4050 simple interest at 9% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
18. 18.What is the simple interest on ₹7000 at 3% per year for 5 years? (a) ₹8050 (b) ₹1050 (c) ₹1260 (d) ₹210
19. 19.What is the simple interest on ₹9500 at 3% per year for 5 years? (a) ₹1710 (b) ₹1425 (c) ₹285 (d) ₹10925
20. 20.₹9000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹13320 (b) ₹4320 (c) ₹14400 (d) ₹10080
21. 21.What is the simple interest on ₹10000 at 10% per year for 5 years? (a) ₹1000 (b) ₹15000 (c) ₹5000 (d) ₹6000
22. 22.The simple interest on ₹10000 for 2 years is ₹1800. What is the rate per year? (a) 18% (b) 9% (c) 10% (d) 8%
23. 23.What is the simple interest on ₹4500 at 12% per year for 5 years? (a) ₹3240 (b) ₹7200 (c) ₹2700 (d) ₹540
24. 24.What is the simple interest on ₹3000 at 12% per year for 4 years? (a) ₹4440 (b) ₹1440 (c) ₹360 (d) ₹1800
25. 25.₹3000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹3120 (c) ₹3720 (d) ₹3600
26. 26.₹3500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹630 (b) ₹3815 (c) ₹4445 (d) ₹4130
27. 27.What is the simple interest on ₹10000 at 9% per year for 2 years? (a) ₹900 (b) ₹2700 (c) ₹11800 (d) ₹1800
28. 28.What is the simple interest on ₹2000 at 9% per year for 4 years? (a) ₹2720 (b) ₹720 (c) ₹180 (d) ₹900
29. 29.In how many years will ₹8000 earn ₹480 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
30. 30.₹2000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹2960 (b) ₹2240 (c) ₹960 (d) ₹3200
31. 31.₹1500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹1635 (b) ₹135 (c) ₹1545 (d) ₹1680
32. 32.What is the simple interest on ₹2000 at 9% per year for 2 years? (a) ₹180 (b) ₹540 (c) ₹360 (d) ₹2360
33. 33.In how many years will ₹9000 earn ₹4500 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
34. 34.₹5500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹6820 (b) ₹1320 (c) ₹5940 (d) ₹7260
35. 35.The simple interest on ₹1500 for 4 years is ₹300. What is the rate per year? (a) 4% (b) 6% (c) 5% (d) 20%
36. 36.What is the simple interest on ₹1000 at 4% per year for 5 years? (a) ₹240 (b) ₹1200 (c) ₹200 (d) ₹40
37. 37.₹8000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹1600 (b) ₹8400 (c) ₹10000 (d) ₹9600
38. 38.What is the simple interest on ₹5500 at 5% per year for 5 years? (a) ₹6875 (b) ₹1375 (c) ₹275 (d) ₹1650
39. 39.In how many years will ₹6000 earn ₹2160 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
40. 40.In how many years will ₹7000 earn ₹1890 simple interest at 9% per year? (a) 4 years (b) 6 years (c) 2 years (d) 3 years

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