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).
NameDateTime takenScore ___ / 40
- 1.What is the simple interest on ₹3500 at 7% per year for 4 years? (a) ₹1225 (b) ₹980 (c) ₹4480 (d) ₹245
- 2.₹7000 is invested at 5% per year simple interest. What is the amount after 4 years? (a) ₹7350 (b) ₹1400 (c) ₹8750 (d) ₹8400
- 3.What is the simple interest on ₹9500 at 9% per year for 2 years? (a) ₹2565 (b) ₹1710 (c) ₹11210 (d) ₹855
- 4.What is the simple interest on ₹5000 at 12% per year for 4 years? (a) ₹7400 (b) ₹3000 (c) ₹2400 (d) ₹600
- 5.In how many years will ₹2500 earn ₹1000 simple interest at 10% per year? (a) 3 years (b) 8 years (c) 5 years (d) 4 years
- 6.₹5500 is invested at 4% per year simple interest. What is the amount after 4 years? (a) ₹880 (b) ₹5720 (c) ₹6600 (d) ₹6380
- 7.The simple interest on ₹2000 for 3 years is ₹180. What is the rate per year? (a) 3% (b) 4% (c) 2% (d) 9%
- 8.₹9000 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹540 (b) ₹9720 (c) ₹9540 (d) ₹9180
- 9.What is the simple interest on ₹3000 at 10% per year for 5 years? (a) ₹300 (b) ₹4500 (c) ₹1800 (d) ₹1500
- 10.What is the simple interest on ₹1000 at 6% per year for 5 years? (a) ₹360 (b) ₹1300 (c) ₹300 (d) ₹60
- 11.In how many years will ₹1500 earn ₹750 simple interest at 10% per year? (a) 5 years (b) 10 years (c) 6 years (d) 4 years
- 12.₹6000 is invested at 3% per year simple interest. What is the amount after 4 years? (a) ₹6720 (b) ₹720 (c) ₹6180 (d) ₹6900
- 13.₹6500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹6630 (b) ₹7020 (c) ₹6890 (d) ₹390
- 14.In how many years will ₹7500 earn ₹2700 simple interest at 12% per year? (a) 6 years (b) 4 years (c) 2 years (d) 3 years
- 15.What is the simple interest on ₹3000 at 5% per year for 5 years? (a) ₹3750 (b) ₹750 (c) ₹150 (d) ₹900
- 16.₹7000 is invested at 8% per year simple interest. What is the amount after 3 years? (a) ₹1680 (b) ₹8680 (c) ₹7560 (d) ₹9240
- 17.The simple interest on ₹1000 for 5 years is ₹400. What is the rate per year? (a) 40% (b) 8% (c) 7% (d) 9%
- 18.The simple interest on ₹7500 for 4 years is ₹1800. What is the rate per year? (a) 5% (b) 6% (c) 7% (d) 24%
- 19.In how many years will ₹10000 earn ₹4400 simple interest at 11% per year? (a) 3 years (b) 5 years (c) 4 years (d) 8 years
- 20.In how many years will ₹6500 earn ₹1300 simple interest at 10% per year? (a) 1 year (b) 2 years (c) 4 years (d) 3 years
- 21.The simple interest on ₹5500 for 4 years is ₹880. What is the rate per year? (a) 3% (b) 4% (c) 5% (d) 16%
- 22.What is the simple interest on ₹9000 at 6% per year for 4 years? (a) ₹11160 (b) ₹540 (c) ₹2700 (d) ₹2160
- 23.₹5000 is invested at 12% per year simple interest. What is the amount after 2 years? (a) ₹1200 (b) ₹5600 (c) ₹6200 (d) ₹6800
- 24.₹10000 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹15500 (b) ₹4400 (c) ₹11100 (d) ₹14400
- 25.In how many years will ₹2000 earn ₹300 simple interest at 3% per year? (a) 5 years (b) 6 years (c) 4 years (d) 10 years
- 26.The simple interest on ₹4500 for 3 years is ₹1620. What is the rate per year? (a) 11% (b) 13% (c) 36% (d) 12%
- 27.What is the simple interest on ₹5500 at 5% per year for 5 years? (a) ₹6875 (b) ₹1650 (c) ₹1375 (d) ₹275
- 28.The simple interest on ₹3000 for 5 years is ₹600. What is the rate per year? (a) 20% (b) 5% (c) 4% (d) 3%
- 29.What is the simple interest on ₹2000 at 8% per year for 4 years? (a) ₹800 (b) ₹640 (c) ₹160 (d) ₹2640
- 30.What is the simple interest on ₹6000 at 3% per year for 3 years? (a) ₹720 (b) ₹6540 (c) ₹180 (d) ₹540
- 31.What is the simple interest on ₹2500 at 9% per year for 4 years? (a) ₹3400 (b) ₹225 (c) ₹1125 (d) ₹900
- 32.₹2000 is invested at 6% per year simple interest. What is the amount after 5 years? (a) ₹600 (b) ₹2120 (c) ₹2720 (d) ₹2600
- 33.What is the simple interest on ₹9000 at 3% per year for 2 years? (a) ₹810 (b) ₹540 (c) ₹270 (d) ₹9540
- 34.₹3500 is invested at 7% per year simple interest. What is the amount after 5 years? (a) ₹4725 (b) ₹4970 (c) ₹3745 (d) ₹1225
- 35.In how many years will ₹2500 earn ₹750 simple interest at 10% per year? (a) 4 years (b) 2 years (c) 6 years (d) 3 years
- 36.₹2500 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹2700 (b) ₹2800 (c) ₹200 (d) ₹2600
- 37.₹2500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹2800 (b) ₹2725 (c) ₹225 (d) ₹2575
- 38.The simple interest on ₹3500 for 3 years is ₹315. What is the rate per year? (a) 3% (b) 2% (c) 4% (d) 9%
- 39.The simple interest on ₹9000 for 3 years is ₹2430. What is the rate per year? (a) 10% (b) 27% (c) 8% (d) 9%
- 40.What is the simple interest on ₹9500 at 11% per year for 5 years? (a) ₹1045 (b) ₹5225 (c) ₹14725 (d) ₹6270
Answer key
- ₹980
- ₹8400
- ₹1710
- ₹2400
- 4 years
- ₹6380
- 3%
- ₹9540
- ₹1500
- ₹300
- 5 years
- ₹6720
- ₹6890
- 3 years
- ₹750
- ₹8680
- 8%
- 6%
- 4 years
- 2 years
- 4%
- ₹2160
- ₹6200
- ₹14400
- 5 years
- 12%
- ₹1375
- 4%
- ₹640
- ₹540
- ₹900
- ₹2600
- ₹540
- ₹4725
- 3 years
- ₹2700
- ₹2725
- 3%
- 9%
- ₹5225
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