Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 836 · 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.₹3500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹945 (b) ₹4760 (c) ₹3815 (d) ₹4445
2. 2.₹4000 is invested at 12% per year simple interest. What is the amount after 5 years? (a) ₹6880 (b) ₹2400 (c) ₹4480 (d) ₹6400
3. 3.In how many years will ₹10000 earn ₹2000 simple interest at 10% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
4. 4.₹1500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹1620 (b) ₹1740 (c) ₹240 (d) ₹1860
5. 5.What is the simple interest on ₹3000 at 9% per year for 5 years? (a) ₹270 (b) ₹1350 (c) ₹1620 (d) ₹4350
6. 6.What is the simple interest on ₹4500 at 10% per year for 3 years? (a) ₹1800 (b) ₹1350 (c) ₹5850 (d) ₹450
7. 7.₹9000 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹13320 (b) ₹10080 (c) ₹14400 (d) ₹4320
8. 8.₹1500 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1650 (b) ₹300 (c) ₹1950 (d) ₹1800
9. 9.₹2000 is invested at 8% per year simple interest. What is the amount after 5 years? (a) ₹2800 (b) ₹2160 (c) ₹2960 (d) ₹800
10. 10.In how many years will ₹4000 earn ₹480 simple interest at 6% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
11. 11.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8240 (b) ₹8480 (c) ₹8720 (d) ₹480
12. 12.₹1500 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹1590 (b) ₹270 (c) ₹1770 (d) ₹1860
13. 13.What is the simple interest on ₹9000 at 6% per year for 2 years? (a) ₹10080 (b) ₹1080 (c) ₹1620 (d) ₹540
14. 14.In how many years will ₹8000 earn ₹1760 simple interest at 11% per year? (a) 1 year (b) 4 years (c) 3 years (d) 2 years
15. 15.₹3500 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹3745 (b) ₹4480 (c) ₹980 (d) ₹4725
16. 16.The simple interest on ₹6500 for 4 years is ₹2340. What is the rate per year? (a) 36% (b) 10% (c) 8% (d) 9%
17. 17.The simple interest on ₹2000 for 4 years is ₹480. What is the rate per year? (a) 6% (b) 24% (c) 7% (d) 5%
18. 18.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹8450 (b) ₹650 (c) ₹2600 (d) ₹1950
19. 19.What is the simple interest on ₹3000 at 11% per year for 3 years? (a) ₹990 (b) ₹3990 (c) ₹330 (d) ₹1320
20. 20.In how many years will ₹4000 earn ₹640 simple interest at 8% per year? (a) 3 years (b) 2 years (c) 1 year (d) 4 years
21. 21.In how many years will ₹9500 earn ₹3040 simple interest at 8% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
22. 22.What is the simple interest on ₹3500 at 7% per year for 2 years? (a) ₹735 (b) ₹3990 (c) ₹490 (d) ₹245
23. 23.In how many years will ₹3500 earn ₹980 simple interest at 7% per year? (a) 8 years (b) 3 years (c) 4 years (d) 5 years
24. 24.₹8000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹8800 (b) ₹1600 (c) ₹9600 (d) ₹10400
25. 25.What is the simple interest on ₹4000 at 2% per year for 2 years? (a) ₹80 (b) ₹160 (c) ₹240 (d) ₹4160
26. 26.₹10000 is invested at 2% per year simple interest. What is the amount after 4 years? (a) ₹11000 (b) ₹800 (c) ₹10200 (d) ₹10800
27. 27.The simple interest on ₹9500 for 3 years is ₹2565. What is the rate per year? (a) 10% (b) 27% (c) 9% (d) 8%
28. 28.What is the simple interest on ₹5000 at 3% per year for 4 years? (a) ₹600 (b) ₹150 (c) ₹750 (d) ₹5600
29. 29.₹7500 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹10875 (b) ₹11550 (c) ₹8175 (d) ₹3375
30. 30.What is the simple interest on ₹2000 at 8% per year for 2 years? (a) ₹160 (b) ₹480 (c) ₹320 (d) ₹2320
31. 31.In how many years will ₹8000 earn ₹720 simple interest at 3% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
32. 32.In how many years will ₹1500 earn ₹540 simple interest at 9% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
33. 33.In how many years will ₹4500 earn ₹900 simple interest at 4% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
34. 34.₹2500 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹800 (b) ₹3300 (c) ₹3500 (d) ₹2700
35. 35.The simple interest on ₹7000 for 2 years is ₹560. What is the rate per year? (a) 8% (b) 3% (c) 5% (d) 4%
36. 36.What is the simple interest on ₹3000 at 3% per year for 4 years? (a) ₹450 (b) ₹3360 (c) ₹360 (d) ₹90
37. 37.The simple interest on ₹4000 for 2 years is ₹160. What is the rate per year? (a) 2% (b) 1% (c) 4% (d) 3%
38. 38.What is the simple interest on ₹2500 at 4% per year for 3 years? (a) ₹2800 (b) ₹100 (c) ₹300 (d) ₹400
39. 39.What is the simple interest on ₹4500 at 3% per year for 4 years? (a) ₹540 (b) ₹5040 (c) ₹135 (d) ₹675
40. 40.In how many years will ₹3500 earn ₹630 simple interest at 9% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year

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