Simple interest is interest that is calculated only on the amount of unpaid principal on a loan. Such interest is not added to the value of the loan but is tracked separately.
Compound interest is interest that is calculated on the total of unpaid principal and accumulated interest on a loan.
The difference is in simple interest there is no interest charged on accumulated interest while in compound interest there is interest charged on accumulated interest.
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If an amount C is invested for n years with an interest rate of r%, then the amount of interest earned is C*n*r/100
Alright, listen up, honey. To solve simple investment problems using simple interest, you just need to multiply the principal amount by the interest rate and the time period. Add the interest to the principal, and voila, you've got your total amount. It's basic math, darling, nothing to lose sleep over.
The answer for rate in simple interest is =rate= simple interest\principle*time
First you figure out the Principal, then you find the interest rate and then find the Time someone gave you to pay back loaned or borrowed money.Formula: Simple Interest= Principal*Rate*TimeExample: Principal-$25,000 Interest Rate- 6.25 simple interest- 6 years$25,000 x .0625 x 6= $9375!
Bankers do all sorts of math, from simple addition and subtraction to complicated problems including compound interest, for example. Math is essential to any banking job. Today though, most of the math is done on computers, not by hand or by humans at all.