It is easiest to concentrate on how much your total money will increase, and to use factors as follows. For example, if you start with 1000 dollars, at 7% a year, your money will increase by a factor of 1.07 (1 stands for the original capital, 0.07 to the 7% increase) every year. In 5 years, your capital will increase by a factor of 1.07 x 1.07 x 1.07 x 1.07 x 1.07, which can be written as 1.075. Calculate this, and if you want to know how much of this was interest, just subtract the original capital.
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the formula for simple interest is I=PRT (interest=principal x rate x time )
750 invested for 10 years at 10% pa would be 1,945
Well, darling, if you want to know how much compound interest you'll get on Rs 9650 at a 6% rate over 3 years, I'll tell you straight. The formula for compound interest is A = P(1 + r/n)^(nt), where A is the amount, P is the principal, r is the rate, n is the number of times interest is compounded per year, and t is the time in years. Plug in those numbers and you'll find out the compound interest you're looking for. Just remember, math doesn't care about your feelings, honey.
If 1500 dollars is invested at an interest rate of 3.5 percent per year compounded continuously, after 3 years it's worth $1666.07, after 6 years it's $1850.52, and after 18 years it's worth $2816.42.
Capacity is the same as the volume of the inside of a container. Often, in mathematical exercises, the internal and external volumes are assumed to be the same (ie thickness of the container is zero). In this case, the capacity is the same as the internal or external volume.