simple intrest=ptr/100: simple intrest=ptr/100:
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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.
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
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!
If the 3.5 percent is per year, with simple interest you have the equation: 2142 = 15300*0.035*t ; then solve for t = 4, so 4 years.
The answer for rate in simple interest is =rate= simple interest\principle*time