331/3 percent simple interest will double any amount in 3 years.
A simple interest rate of 10 per cent per year will double a sum of money in ten years.
At what rate of simple interest will the interest on Rs.925 be two-fifth of it in 8 years?
It will take 20 years.
$494.34 Interest= principal amount * time* simple interest %
Simple interest = 1000 * 5/100 * 3 = 150
It will take 25 years for a 100 to double check if you have a simple interest of 4 percent.
About 8 years to double (divide 70 by the interest rate), and presumably another 8 years to double again? This supposes compound interest. For simple interest, 11 years to double and 33 to quadruple.
A simple interest rate of 10 per cent per year will double a sum of money in ten years.
20 YEARS
The same time that it will take for any other amount to double. However, for the actual calculations you need to know the interest rate.
At what rate of simple interest will the interest on Rs.925 be two-fifth of it in 8 years?
Simple interest: 100/6 ie 16.67%
It will take 20 years.
There is a quick and dirty way to convert simple interest to compound interest. First you need to know how long it will take to double your initial number. For Example: Let's say that you find an investment that pays 10% simple interest. That means it takes 10 years to double your investment. We then use the rule of 72 to determine the rate of compound return will give an equivalent time. The rule of 72 says that you divide either the rate of return or the time period into 72 to come up with the other. So, in this example we want to know what interest rate would double our money in 10 years. divide 72 by 10 = 7.2 This means that 7.2% compound interest is equal to 10% simple interest.
7% simple annual interest over 2 years = 14% total interest.14% of R528 = R73.92 .
Sometimes. It depends on the interest rate. The rule of 72 will tell you when your investment will double.Example(usage): you invest x dollars at 9% interest per year. 72/9 = 8It will take 8 years for your investment to reach 2x at 9% annual interest.The interest needed to double an investment in 10 years is:72/x=107.2% interestSo if your investment had an annual interest rate of 7.2% it would double in 10 years.
Simple interest = 1000 * 5/100 * 3 = 150