Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 791 · 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 ₹9500 for 4 years is ₹4180. What is the rate per year? (a) 44% (b) 12% (c) 10% (d) 11%
2. 2.The simple interest on ₹9000 for 4 years is ₹3600. What is the rate per year? (a) 9% (b) 40% (c) 11% (d) 10%
3. 3.What is the simple interest on ₹9000 at 12% per year for 2 years? (a) ₹3240 (b) ₹11160 (c) ₹2160 (d) ₹1080
4. 4.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹50 (b) ₹150 (c) ₹2600 (d) ₹100
5. 5.What is the simple interest on ₹3000 at 5% per year for 4 years? (a) ₹150 (b) ₹750 (c) ₹600 (d) ₹3600
6. 6.In how many years will ₹8000 earn ₹3840 simple interest at 12% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
7. 7.In how many years will ₹4000 earn ₹320 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 3 years (d) 5 years
8. 8.₹4000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹1320 (b) ₹5320 (c) ₹5760 (d) ₹4440
9. 9.In how many years will ₹4500 earn ₹450 simple interest at 5% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
10. 10.₹7000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹560 (b) ₹7280 (c) ₹7560 (d) ₹7840
11. 11.In how many years will ₹9000 earn ₹5400 simple interest at 12% per year? (a) 6 years (b) 5 years (c) 10 years (d) 4 years
12. 12.The simple interest on ₹6000 for 3 years is ₹1260. What is the rate per year? (a) 6% (b) 21% (c) 8% (d) 7%
13. 13.What is the simple interest on ₹7500 at 3% per year for 3 years? (a) ₹8175 (b) ₹900 (c) ₹675 (d) ₹225
14. 14.The simple interest on ₹3000 for 4 years is ₹840. What is the rate per year? (a) 28% (b) 8% (c) 6% (d) 7%
15. 15.₹6000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹900 (b) ₹7080 (c) ₹6900 (d) ₹6180
16. 16.In how many years will ₹3500 earn ₹1050 simple interest at 10% per year? (a) 6 years (b) 4 years (c) 3 years (d) 2 years
17. 17.₹6000 is invested at 9% per year simple interest. What is the amount after 3 years? (a) ₹6540 (b) ₹8160 (c) ₹7620 (d) ₹1620
18. 18.₹5000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹6000 (b) ₹5200 (c) ₹1000 (d) ₹6200
19. 19.₹8000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹8960 (b) ₹8240 (c) ₹960 (d) ₹9200
20. 20.The simple interest on ₹6000 for 4 years is ₹480. What is the rate per year? (a) 1% (b) 3% (c) 2% (d) 8%
21. 21.The simple interest on ₹2500 for 4 years is ₹1000. What is the rate per year? (a) 11% (b) 40% (c) 10% (d) 9%
22. 22.₹7000 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹8470 (b) ₹7490 (c) ₹980 (d) ₹7980
23. 23.In how many years will ₹7500 earn ₹900 simple interest at 3% per year? (a) 3 years (b) 4 years (c) 8 years (d) 5 years
24. 24.In how many years will ₹8500 earn ₹2040 simple interest at 12% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
25. 25.What is the simple interest on ₹5500 at 9% per year for 3 years? (a) ₹6985 (b) ₹1485 (c) ₹1980 (d) ₹495
26. 26.What is the simple interest on ₹4500 at 6% per year for 5 years? (a) ₹1350 (b) ₹5850 (c) ₹1620 (d) ₹270
27. 27.₹8000 is invested at 3% per year simple interest. What is the amount after 2 years? (a) ₹8720 (b) ₹8240 (c) ₹8480 (d) ₹480
28. 28.The simple interest on ₹10000 for 4 years is ₹3600. What is the rate per year? (a) 10% (b) 36% (c) 8% (d) 9%
29. 29.₹7000 is invested at 7% per year simple interest. What is the amount after 4 years? (a) ₹7490 (b) ₹9450 (c) ₹8960 (d) ₹1960
30. 30.What is the simple interest on ₹5000 at 2% per year for 3 years? (a) ₹5300 (b) ₹100 (c) ₹400 (d) ₹300
31. 31.What is the simple interest on ₹2000 at 7% per year for 3 years? (a) ₹2420 (b) ₹140 (c) ₹560 (d) ₹420
32. 32.₹9000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹1350 (b) ₹9270 (c) ₹10350 (d) ₹10620
33. 33.The simple interest on ₹7500 for 4 years is ₹2700. What is the rate per year? (a) 10% (b) 8% (c) 9% (d) 36%
34. 34.What is the simple interest on ₹3000 at 2% per year for 5 years? (a) ₹60 (b) ₹3300 (c) ₹360 (d) ₹300
35. 35.What is the simple interest on ₹7500 at 7% per year for 5 years? (a) ₹3150 (b) ₹2625 (c) ₹525 (d) ₹10125
36. 36.The simple interest on ₹3000 for 2 years is ₹240. What is the rate per year? (a) 8% (b) 3% (c) 4% (d) 5%
37. 37.The simple interest on ₹8000 for 3 years is ₹2400. What is the rate per year? (a) 11% (b) 30% (c) 9% (d) 10%
38. 38.In how many years will ₹7500 earn ₹3000 simple interest at 8% per year? (a) 4 years (b) 10 years (c) 5 years (d) 6 years
39. 39.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
40. 40.In how many years will ₹1500 earn ₹600 simple interest at 8% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years

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