Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 223 · 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.₹3000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹3540 (b) ₹540 (c) ₹3180 (d) ₹3720
2. 2.₹2500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹400 (b) ₹3000 (c) ₹2900 (d) ₹2600
3. 3.What is the simple interest on ₹7000 at 9% per year for 3 years? (a) ₹630 (b) ₹2520 (c) ₹1890 (d) ₹8890
4. 4.In how many years will ₹7500 earn ₹1200 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 5 years (d) 8 years
5. 5.In how many years will ₹6000 earn ₹1200 simple interest at 10% per year? (a) 2 years (b) 4 years (c) 3 years (d) 1 year
6. 6.The simple interest on ₹8000 for 5 years is ₹1200. What is the rate per year? (a) 15% (b) 4% (c) 3% (d) 2%
7. 7.The simple interest on ₹6500 for 4 years is ₹1300. What is the rate per year? (a) 20% (b) 6% (c) 5% (d) 4%
8. 8.The simple interest on ₹7000 for 5 years is ₹3150. What is the rate per year? (a) 9% (b) 10% (c) 8% (d) 45%
9. 9.What is the simple interest on ₹8000 at 5% per year for 5 years? (a) ₹2400 (b) ₹2000 (c) ₹10000 (d) ₹400
10. 10.What is the simple interest on ₹2500 at 10% per year for 5 years? (a) ₹3750 (b) ₹250 (c) ₹1500 (d) ₹1250
11. 11.What is the simple interest on ₹9000 at 10% per year for 2 years? (a) ₹2700 (b) ₹1800 (c) ₹10800 (d) ₹900
12. 12.The simple interest on ₹6000 for 2 years is ₹1080. What is the rate per year? (a) 18% (b) 9% (c) 8% (d) 10%
13. 13.In how many years will ₹9000 earn ₹720 simple interest at 2% per year? (a) 4 years (b) 8 years (c) 5 years (d) 3 years
14. 14.₹2000 is invested at 3% per year simple interest. What is the amount after 5 years? (a) ₹300 (b) ₹2300 (c) ₹2060 (d) ₹2360
15. 15.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹490 (b) ₹980 (c) ₹7980 (d) ₹1470
16. 16.What is the simple interest on ₹4000 at 10% per year for 4 years? (a) ₹5600 (b) ₹400 (c) ₹2000 (d) ₹1600
17. 17.In how many years will ₹6500 earn ₹1755 simple interest at 9% per year? (a) 2 years (b) 6 years (c) 3 years (d) 4 years
18. 18.The simple interest on ₹1000 for 3 years is ₹240. What is the rate per year? (a) 24% (b) 8% (c) 9% (d) 7%
19. 19.₹5000 is invested at 6% per year simple interest. What is the amount after 3 years? (a) ₹5900 (b) ₹5300 (c) ₹900 (d) ₹6200
20. 20.₹9500 is invested at 7% per year simple interest. What is the amount after 2 years? (a) ₹10165 (b) ₹1330 (c) ₹10830 (d) ₹11495
21. 21.What is the simple interest on ₹4500 at 6% per year for 4 years? (a) ₹270 (b) ₹5580 (c) ₹1350 (d) ₹1080
22. 22.₹3500 is invested at 12% per year simple interest. What is the amount after 4 years? (a) ₹5180 (b) ₹5600 (c) ₹3920 (d) ₹1680
23. 23.What is the simple interest on ₹1500 at 4% per year for 2 years? (a) ₹60 (b) ₹120 (c) ₹1620 (d) ₹180
24. 24.The simple interest on ₹2000 for 2 years is ₹80. What is the rate per year? (a) 2% (b) 1% (c) 3% (d) 4%
25. 25.What is the simple interest on ₹3500 at 3% per year for 3 years? (a) ₹105 (b) ₹420 (c) ₹3815 (d) ₹315
26. 26.₹10000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹12000 (b) ₹10500 (c) ₹12500 (d) ₹2000
27. 27.What is the simple interest on ₹7000 at 3% per year for 5 years? (a) ₹8050 (b) ₹210 (c) ₹1050 (d) ₹1260
28. 28.In how many years will ₹7000 earn ₹700 simple interest at 2% per year? (a) 4 years (b) 5 years (c) 6 years (d) 10 years
29. 29.The simple interest on ₹3500 for 2 years is ₹210. What is the rate per year? (a) 2% (b) 3% (c) 6% (d) 4%
30. 30.What is the simple interest on ₹1000 at 7% per year for 3 years? (a) ₹210 (b) ₹280 (c) ₹1210 (d) ₹70
31. 31.₹1000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹1550 (b) ₹1440 (c) ₹440 (d) ₹1110
32. 32.₹3000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹180 (b) ₹3240 (c) ₹3060 (d) ₹3180
33. 33.₹9500 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹10260 (b) ₹2280 (c) ₹12540 (d) ₹11780
34. 34.₹8000 is invested at 10% per year simple interest. What is the amount after 4 years? (a) ₹11200 (b) ₹12000 (c) ₹8800 (d) ₹3200
35. 35.In how many years will ₹4500 earn ₹450 simple interest at 2% per year? (a) 5 years (b) 6 years (c) 10 years (d) 4 years
36. 36.What is the simple interest on ₹6500 at 9% per year for 4 years? (a) ₹2340 (b) ₹8840 (c) ₹2925 (d) ₹585
37. 37.The simple interest on ₹5500 for 4 years is ₹1980. What is the rate per year? (a) 36% (b) 9% (c) 8% (d) 10%
38. 38.In how many years will ₹6500 earn ₹650 simple interest at 5% per year? (a) 4 years (b) 1 year (c) 2 years (d) 3 years
39. 39.In how many years will ₹9500 earn ₹760 simple interest at 2% per year? (a) 8 years (b) 4 years (c) 5 years (d) 3 years
40. 40.₹7500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹8400 (b) ₹8100 (c) ₹600 (d) ₹7800

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