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.The simple interest on ₹5500 for 3 years is ₹1155. What is the rate per year? (a) 8% (b) 7% (c) 6% (d) 21%
- 2.The simple interest on ₹8500 for 3 years is ₹1020. What is the rate per year? (a) 12% (b) 4% (c) 5% (d) 3%
- 3.In how many years will ₹9500 earn ₹760 simple interest at 4% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
- 4.In how many years will ₹9500 earn ₹1140 simple interest at 4% per year? (a) 3 years (b) 4 years (c) 6 years (d) 2 years
- 5.What is the simple interest on ₹1000 at 11% per year for 3 years? (a) ₹110 (b) ₹1330 (c) ₹330 (d) ₹440
- 6.₹4500 is invested at 11% per year simple interest. What is the amount after 4 years? (a) ₹4995 (b) ₹6480 (c) ₹1980 (d) ₹6975
- 7.What is the simple interest on ₹8500 at 2% per year for 2 years? (a) ₹510 (b) ₹170 (c) ₹340 (d) ₹8840
- 8.₹7500 is invested at 6% per year simple interest. What is the amount after 4 years? (a) ₹7950 (b) ₹9300 (c) ₹9750 (d) ₹1800
- 9.What is the simple interest on ₹10000 at 9% per year for 5 years? (a) ₹14500 (b) ₹4500 (c) ₹5400 (d) ₹900
- 10.In how many years will ₹4500 earn ₹540 simple interest at 4% per year? (a) 6 years (b) 2 years (c) 3 years (d) 4 years
- 11.In how many years will ₹6500 earn ₹650 simple interest at 2% per year? (a) 6 years (b) 10 years (c) 5 years (d) 4 years
- 12.In how many years will ₹1500 earn ₹525 simple interest at 7% per year? (a) 4 years (b) 6 years (c) 5 years (d) 10 years
- 13.The simple interest on ₹2000 for 3 years is ₹720. What is the rate per year? (a) 12% (b) 11% (c) 36% (d) 13%
- 14.The simple interest on ₹6500 for 4 years is ₹520. What is the rate per year? (a) 2% (b) 8% (c) 3% (d) 1%
- 15.₹5000 is invested at 7% per year simple interest. What is the amount after 3 years? (a) ₹5350 (b) ₹1050 (c) ₹6400 (d) ₹6050
- 16.₹8000 is invested at 11% per year simple interest. What is the amount after 2 years? (a) ₹9760 (b) ₹8880 (c) ₹10640 (d) ₹1760
- 17.The simple interest on ₹10000 for 4 years is ₹1200. What is the rate per year? (a) 12% (b) 2% (c) 3% (d) 4%
- 18.₹9000 is invested at 5% per year simple interest. What is the amount after 3 years? (a) ₹9450 (b) ₹10350 (c) ₹1350 (d) ₹10800
- 19.₹5500 is invested at 4% per year simple interest. What is the amount after 3 years? (a) ₹6380 (b) ₹5720 (c) ₹6160 (d) ₹660
- 20.₹8000 is invested at 5% per year simple interest. What is the amount after 5 years? (a) ₹2000 (b) ₹8400 (c) ₹10000 (d) ₹10400
- 21.What is the simple interest on ₹3000 at 4% per year for 4 years? (a) ₹600 (b) ₹480 (c) ₹120 (d) ₹3480
- 22.What is the simple interest on ₹6000 at 2% per year for 2 years? (a) ₹240 (b) ₹6240 (c) ₹360 (d) ₹120
- 23.₹1500 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹180 (b) ₹1590 (c) ₹1770 (d) ₹1680
- 24.What is the simple interest on ₹2500 at 2% per year for 2 years? (a) ₹2600 (b) ₹50 (c) ₹100 (d) ₹150
- 25.₹4000 is invested at 11% per year simple interest. What is the amount after 5 years? (a) ₹4440 (b) ₹6200 (c) ₹2200 (d) ₹6640
- 26.What is the simple interest on ₹3500 at 12% per year for 4 years? (a) ₹1680 (b) ₹5180 (c) ₹2100 (d) ₹420
- 27.What is the simple interest on ₹9000 at 7% per year for 3 years? (a) ₹630 (b) ₹2520 (c) ₹10890 (d) ₹1890
- 28.The simple interest on ₹7000 for 3 years is ₹2310. What is the rate per year? (a) 11% (b) 33% (c) 10% (d) 12%
- 29.In how many years will ₹3500 earn ₹210 simple interest at 3% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
- 30.What is the simple interest on ₹1000 at 3% per year for 4 years? (a) ₹30 (b) ₹1120 (c) ₹120 (d) ₹150
- 31.₹1000 is invested at 4% per year simple interest. What is the amount after 2 years? (a) ₹1040 (b) ₹80 (c) ₹1080 (d) ₹1120
- 32.The simple interest on ₹5000 for 4 years is ₹2200. What is the rate per year? (a) 12% (b) 11% (c) 10% (d) 44%
- 33.The simple interest on ₹5000 for 4 years is ₹1800. What is the rate per year? (a) 36% (b) 8% (c) 9% (d) 10%
- 34.₹8500 is invested at 3% per year simple interest. What is the amount after 3 years? (a) ₹9520 (b) ₹765 (c) ₹8755 (d) ₹9265
- 35.What is the simple interest on ₹6500 at 10% per year for 3 years? (a) ₹650 (b) ₹8450 (c) ₹2600 (d) ₹1950
- 36.The simple interest on ₹2000 for 4 years is ₹720. What is the rate per year? (a) 10% (b) 9% (c) 8% (d) 36%
- 37.The simple interest on ₹10000 for 4 years is ₹1600. What is the rate per year? (a) 4% (b) 5% (c) 16% (d) 3%
- 38.In how many years will ₹5000 earn ₹300 simple interest at 2% per year? (a) 4 years (b) 2 years (c) 3 years (d) 6 years
- 39.What is the simple interest on ₹5500 at 2% per year for 2 years? (a) ₹110 (b) ₹330 (c) ₹220 (d) ₹5720
- 40.What is the simple interest on ₹1000 at 8% per year for 4 years? (a) ₹320 (b) ₹1320 (c) ₹400 (d) ₹80
Answer key
- 7%
- 4%
- 2 years
- 3 years
- ₹330
- ₹6480
- ₹340
- ₹9300
- ₹4500
- 3 years
- 5 years
- 5 years
- 12%
- 2%
- ₹6050
- ₹9760
- 3%
- ₹10350
- ₹6160
- ₹10000
- ₹480
- ₹240
- ₹1680
- ₹100
- ₹6200
- ₹1680
- ₹1890
- 11%
- 2 years
- ₹120
- ₹1080
- 11%
- 9%
- ₹9265
- ₹1950
- 9%
- 4%
- 3 years
- ₹220
- ₹320
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