Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 114 · 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 ₹2500 for 2 years is ₹300. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 12%
2. 2.In how many years will ₹9500 earn ₹3420 simple interest at 9% per year? (a) 4 years (b) 8 years (c) 3 years (d) 5 years
3. 3.What is the simple interest on ₹7000 at 3% per year for 3 years? (a) ₹7630 (b) ₹840 (c) ₹210 (d) ₹630
4. 4.What is the simple interest on ₹6500 at 9% per year for 2 years? (a) ₹1170 (b) ₹585 (c) ₹7670 (d) ₹1755
5. 5.₹2500 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹3250 (b) ₹625 (c) ₹3125 (d) ₹2625
6. 6.₹7500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹1500 (b) ₹9000 (c) ₹7800 (d) ₹9300
7. 7.What is the simple interest on ₹9000 at 3% per year for 4 years? (a) ₹1350 (b) ₹10080 (c) ₹1080 (d) ₹270
8. 8.In how many years will ₹5000 earn ₹800 simple interest at 4% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
9. 9.₹1000 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹160 (b) ₹1080 (c) ₹1240 (d) ₹1160
10. 10.What is the simple interest on ₹1000 at 5% per year for 4 years? (a) ₹200 (b) ₹250 (c) ₹50 (d) ₹1200
11. 11.In how many years will ₹9000 earn ₹900 simple interest at 2% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
12. 12.₹7500 is invested at 5% per year simple interest. What is the amount after 2 years? (a) ₹7875 (b) ₹750 (c) ₹8250 (d) ₹8625
13. 13.What is the simple interest on ₹5500 at 9% per year for 5 years? (a) ₹2475 (b) ₹2970 (c) ₹495 (d) ₹7975
14. 14.What is the simple interest on ₹9500 at 6% per year for 3 years? (a) ₹570 (b) ₹2280 (c) ₹1710 (d) ₹11210
15. 15.In how many years will ₹4000 earn ₹800 simple interest at 10% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
16. 16.The simple interest on ₹6500 for 4 years is ₹1560. What is the rate per year? (a) 5% (b) 24% (c) 6% (d) 7%
17. 17.What is the simple interest on ₹2500 at 3% per year for 2 years? (a) ₹2650 (b) ₹150 (c) ₹75 (d) ₹225
18. 18.₹3000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹630 (b) ₹3210 (c) ₹3840 (d) ₹3630
19. 19.In how many years will ₹4000 earn ₹2400 simple interest at 12% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
20. 20.₹6500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹585 (b) ₹6695 (c) ₹7085 (d) ₹7280
21. 21.In how many years will ₹3500 earn ₹1400 simple interest at 10% per year? (a) 8 years (b) 3 years (c) 5 years (d) 4 years
22. 22.In how many years will ₹1500 earn ₹330 simple interest at 11% per year? (a) 1 year (b) 2 years (c) 3 years (d) 4 years
23. 23.What is the simple interest on ₹6500 at 6% per year for 2 years? (a) ₹390 (b) ₹1170 (c) ₹780 (d) ₹7280
24. 24.₹9000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹2700 (b) ₹12240 (c) ₹11700 (d) ₹9540
25. 25.In how many years will ₹1000 earn ₹80 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
26. 26.₹7000 is invested at 12% per year simple interest. What is the amount after 3 years? (a) ₹2520 (b) ₹9520 (c) ₹10360 (d) ₹7840
27. 27.In how many years will ₹1500 earn ₹600 simple interest at 8% per year? (a) 6 years (b) 4 years (c) 10 years (d) 5 years
28. 28.₹5500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹7260 (b) ₹6820 (c) ₹5940 (d) ₹1320
29. 29.The simple interest on ₹3500 for 5 years is ₹1225. What is the rate per year? (a) 6% (b) 7% (c) 35% (d) 8%
30. 30.The simple interest on ₹7500 for 3 years is ₹2025. What is the rate per year? (a) 8% (b) 9% (c) 27% (d) 10%
31. 31.₹7500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹8700 (b) ₹9000 (c) ₹7800 (d) ₹1200
32. 32.In how many years will ₹3500 earn ₹525 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 2 years (d) 6 years
33. 33.In how many years will ₹5000 earn ₹400 simple interest at 2% per year? (a) 3 years (b) 5 years (c) 8 years (d) 4 years
34. 34.₹3500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹3710 (b) ₹3570 (c) ₹3780 (d) ₹210
35. 35.The simple interest on ₹10000 for 2 years is ₹1400. What is the rate per year? (a) 7% (b) 14% (c) 8% (d) 6%
36. 36.In how many years will ₹4000 earn ₹240 simple interest at 3% per year? (a) 1 year (b) 3 years (c) 4 years (d) 2 years
37. 37.₹9000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹2520 (b) ₹12150 (c) ₹9630 (d) ₹11520
38. 38.₹10000 is invested at 2% per year simple interest. What is the amount after 2 years? (a) ₹10400 (b) ₹10200 (c) ₹10600 (d) ₹400
39. 39.₹5000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹5150 (b) ₹5450 (c) ₹5300 (d) ₹300
40. 40.In how many years will ₹1500 earn ₹540 simple interest at 12% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years

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