Simple and Compound Interest - Shortcuts and Tricks
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Q. A car travels 120 km at a speed of 60 km/h. How long does it take to complete the journey?
Q. A loan of $8000 is taken at a simple interest rate of 7% per annum. What will be the total amount to be paid back after 4 years?
Q. If a man can complete a work in 10 days and another in 15 days, how long will they take to complete the work together?
Q. If a person invests $5000 at a compound interest rate of 4% per annum, how much will he have after 3 years?
Q. If the principal amount is $1000 and the rate of interest is 5% per annum, what will be the simple interest for 3 years?
Q. If the ratio of the principal to the total amount after 2 years at 10% compound interest is 1:1.21, what is the principal?
Q. What is the compound interest on $2000 at an interest rate of 6% per annum for 2 years?
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