Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 290 · 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 ₹1500 for 5 years is ₹450. What is the rate per year? (a) 7% (b) 6% (c) 30% (d) 5%
2. 2.What is the simple interest on ₹1500 at 5% per year for 3 years? (a) ₹75 (b) ₹300 (c) ₹225 (d) ₹1725
3. 3.The simple interest on ₹4000 for 3 years is ₹1320. What is the rate per year? (a) 12% (b) 33% (c) 11% (d) 10%
4. 4.What is the simple interest on ₹2000 at 5% per year for 2 years? (a) ₹2200 (b) ₹300 (c) ₹100 (d) ₹200
5. 5.₹7000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹3850 (b) ₹11620 (c) ₹10850 (d) ₹7770
6. 6.What is the simple interest on ₹7000 at 6% per year for 2 years? (a) ₹420 (b) ₹1260 (c) ₹840 (d) ₹7840
7. 7.What is the simple interest on ₹6000 at 3% per year for 5 years? (a) ₹6900 (b) ₹180 (c) ₹900 (d) ₹1080
8. 8.₹8500 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹1275 (b) ₹8925 (c) ₹10200 (d) ₹9775
9. 9.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹400 (b) ₹1320 (c) ₹320 (d) ₹80
10. 10.The simple interest on ₹7000 for 5 years is ₹1400. What is the rate per year? (a) 4% (b) 3% (c) 5% (d) 20%
11. 11.₹2000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹2120 (b) ₹2040 (c) ₹2160 (d) ₹120
12. 12.In how many years will ₹3000 earn ₹1650 simple interest at 11% per year? (a) 10 years (b) 6 years (c) 4 years (d) 5 years
13. 13.What is the simple interest on ₹3500 at 3% per year for 3 years? (a) ₹3815 (b) ₹105 (c) ₹420 (d) ₹315
14. 14.In how many years will ₹10000 earn ₹6000 simple interest at 12% per year? (a) 5 years (b) 10 years (c) 4 years (d) 6 years
15. 15.What is the simple interest on ₹4500 at 2% per year for 2 years? (a) ₹90 (b) ₹4680 (c) ₹270 (d) ₹180
16. 16.In how many years will ₹2000 earn ₹480 simple interest at 12% per year? (a) 3 years (b) 4 years (c) 1 year (d) 2 years
17. 17.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹1155 (b) ₹6655 (c) ₹385 (d) ₹1540
18. 18.In how many years will ₹3500 earn ₹840 simple interest at 12% per year? (a) 4 years (b) 3 years (c) 2 years (d) 1 year
19. 19.₹6500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹7085 (b) ₹1170 (c) ₹8255 (d) ₹7670
20. 20.In how many years will ₹2500 earn ₹525 simple interest at 7% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
21. 21.₹9500 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹2565 (b) ₹12920 (c) ₹10355 (d) ₹12065
22. 22.₹8000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹10240 (b) ₹9680 (c) ₹1680 (d) ₹8560
23. 23.What is the simple interest on ₹7500 at 7% per year for 2 years? (a) ₹8550 (b) ₹1050 (c) ₹525 (d) ₹1575
24. 24.In how many years will ₹3500 earn ₹1050 simple interest at 10% per year? (a) 2 years (b) 3 years (c) 4 years (d) 6 years
25. 25.₹9500 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹12920 (b) ₹10070 (c) ₹12350 (d) ₹2850
26. 26.What is the simple interest on ₹6500 at 4% per year for 3 years? (a) ₹1040 (b) ₹7280 (c) ₹260 (d) ₹780
27. 27.What is the simple interest on ₹1000 at 4% per year for 5 years? (a) ₹240 (b) ₹1200 (c) ₹40 (d) ₹200
28. 28.In how many years will ₹5500 earn ₹3025 simple interest at 11% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
29. 29.What is the simple interest on ₹8000 at 4% per year for 2 years? (a) ₹640 (b) ₹320 (c) ₹8640 (d) ₹960
30. 30.What is the simple interest on ₹4000 at 6% per year for 4 years? (a) ₹1200 (b) ₹4960 (c) ₹960 (d) ₹240
31. 31.What is the simple interest on ₹6500 at 5% per year for 4 years? (a) ₹7800 (b) ₹1300 (c) ₹325 (d) ₹1625
32. 32.₹8000 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹2800 (b) ₹10800 (c) ₹8560 (d) ₹11360
33. 33.The simple interest on ₹4500 for 2 years is ₹450. What is the rate per year? (a) 10% (b) 4% (c) 6% (d) 5%
34. 34.What is the simple interest on ₹5500 at 9% per year for 4 years? (a) ₹7480 (b) ₹2475 (c) ₹1980 (d) ₹495
35. 35.In how many years will ₹10000 earn ₹1000 simple interest at 5% per year? (a) 2 years (b) 3 years (c) 1 year (d) 4 years
36. 36.The simple interest on ₹1500 for 4 years is ₹240. What is the rate per year? (a) 5% (b) 4% (c) 16% (d) 3%
37. 37.₹8000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹8480 (b) ₹8160 (c) ₹8640 (d) ₹480
38. 38.₹3500 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹3885 (b) ₹4655 (c) ₹5040 (d) ₹1155
39. 39.₹7000 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹8120 (b) ₹7280 (c) ₹7840 (d) ₹840
40. 40.What is the simple interest on ₹9500 at 9% per year for 5 years? (a) ₹13775 (b) ₹5130 (c) ₹4275 (d) ₹855

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