Simple Interest Worksheet for Maths Olympiad
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).
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- 1.₹8500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹9265 (b) ₹10030 (c) ₹10795 (d) ₹1530
- 2.In how many years will ₹6500 earn ₹1170 simple interest at 6% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
- 3.In how many years will ₹7000 earn ₹2100 simple interest at 6% per year? (a) 6 years (b) 4 years (c) 5 years (d) 10 years
- 4.In how many years will ₹7000 earn ₹630 simple interest at 3% per year? (a) 2 years (b) 4 years (c) 6 years (d) 3 years
- 5.In how many years will ₹4500 earn ₹540 simple interest at 6% per year? (a) 4 years (b) 2 years (c) 1 year (d) 3 years
- 6.₹6000 is invested at 10% per year simple interest. What is the amount after 3 years? (a) ₹1800 (b) ₹6600 (c) ₹7800 (d) ₹8400
- 7.₹9000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹10350 (b) ₹9450 (c) ₹10800 (d) ₹1350
- 8.In how many years will ₹7500 earn ₹1200 simple interest at 8% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
- 9.What is the simple interest on ₹3000 at 8% per year for 4 years? (a) ₹240 (b) ₹960 (c) ₹1200 (d) ₹3960
- 10.The simple interest on ₹6500 for 2 years is ₹650. What is the rate per year? (a) 6% (b) 4% (c) 10% (d) 5%
- 11.In how many years will ₹5500 earn ₹2200 simple interest at 10% per year? (a) 4 years (b) 3 years (c) 8 years (d) 5 years
- 12.What is the simple interest on ₹8500 at 3% per year for 2 years? (a) ₹510 (b) ₹765 (c) ₹9010 (d) ₹255
- 13.₹2500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹3550 (b) ₹875 (c) ₹2675 (d) ₹3375
- 14.The simple interest on ₹7000 for 2 years is ₹980. What is the rate per year? (a) 7% (b) 6% (c) 14% (d) 8%
- 15.₹6500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹6890 (b) ₹8450 (c) ₹8060 (d) ₹1560
- 16.The simple interest on ₹2500 for 2 years is ₹600. What is the rate per year? (a) 24% (b) 12% (c) 13% (d) 11%
- 17.The simple interest on ₹2000 for 2 years is ₹440. What is the rate per year? (a) 12% (b) 22% (c) 11% (d) 10%
- 18.The simple interest on ₹5500 for 3 years is ₹1155. What is the rate per year? (a) 6% (b) 8% (c) 7% (d) 21%
- 19.₹5000 is invested at 2% per year simple interest. What is the amount after 5 years? (a) ₹5100 (b) ₹500 (c) ₹5600 (d) ₹5500
- 20.In how many years will ₹8000 earn ₹960 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 6 years (d) 2 years
- 21.In how many years will ₹4500 earn ₹1080 simple interest at 8% per year? (a) 2 years (b) 4 years (c) 3 years (d) 6 years
- 22.₹8000 is invested at 10% per year simple interest. What is the amount after 2 years? (a) ₹1600 (b) ₹8800 (c) ₹10400 (d) ₹9600
- 23.In how many years will ₹8500 earn ₹510 simple interest at 3% per year? (a) 3 years (b) 1 year (c) 2 years (d) 4 years
- 24.What is the simple interest on ₹1000 at 9% per year for 5 years? (a) ₹540 (b) ₹90 (c) ₹450 (d) ₹1450
- 25.The simple interest on ₹4500 for 2 years is ₹270. What is the rate per year? (a) 3% (b) 6% (c) 4% (d) 2%
- 26.The simple interest on ₹1000 for 2 years is ₹200. What is the rate per year? (a) 9% (b) 20% (c) 11% (d) 10%
- 27.What is the simple interest on ₹1000 at 9% per year for 4 years? (a) ₹90 (b) ₹450 (c) ₹1360 (d) ₹360
- 28.The simple interest on ₹10000 for 2 years is ₹1600. What is the rate per year? (a) 8% (b) 7% (c) 9% (d) 16%
- 29.What is the simple interest on ₹5000 at 6% per year for 2 years? (a) ₹5600 (b) ₹600 (c) ₹900 (d) ₹300
- 30.The simple interest on ₹6000 for 3 years is ₹2160. What is the rate per year? (a) 12% (b) 13% (c) 11% (d) 36%
- 31.The simple interest on ₹1000 for 3 years is ₹330. What is the rate per year? (a) 11% (b) 10% (c) 12% (d) 33%
- 32.₹10000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹12400 (b) ₹13600 (c) ₹2400 (d) ₹11200
- 33.What is the simple interest on ₹7500 at 6% per year for 2 years? (a) ₹900 (b) ₹450 (c) ₹8400 (d) ₹1350
- 34.₹1500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹1545 (b) ₹1635 (c) ₹135 (d) ₹1680
- 35.The simple interest on ₹1000 for 2 years is ₹120. What is the rate per year? (a) 7% (b) 6% (c) 5% (d) 12%
- 36.What is the simple interest on ₹6000 at 4% per year for 3 years? (a) ₹6720 (b) ₹960 (c) ₹240 (d) ₹720
- 37.The simple interest on ₹10000 for 5 years is ₹1500. What is the rate per year? (a) 3% (b) 4% (c) 15% (d) 2%
- 38.₹2000 is invested at 9% per year simple interest. What is the amount after 5 years? (a) ₹900 (b) ₹2900 (c) ₹2180 (d) ₹3080
- 39.The simple interest on ₹5000 for 2 years is ₹600. What is the rate per year? (a) 6% (b) 7% (c) 12% (d) 5%
- 40.What is the simple interest on ₹2500 at 2% per year for 3 years? (a) ₹150 (b) ₹2650 (c) ₹200 (d) ₹50
Answer key
- ₹10030
- 3 years
- 5 years
- 3 years
- 2 years
- ₹7800
- ₹10350
- 2 years
- ₹960
- 5%
- 4 years
- ₹510
- ₹3375
- 7%
- ₹8060
- 12%
- 11%
- 7%
- ₹5500
- 3 years
- 3 years
- ₹9600
- 2 years
- ₹450
- 3%
- 10%
- ₹360
- 8%
- ₹600
- 12%
- 11%
- ₹12400
- ₹900
- ₹1635
- 6%
- ₹720
- 3%
- ₹2900
- 6%
- ₹150
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