Simple Interest- help!

[xForever21x]

An investment earns 7.5% simple interest in one year. If the money is withdrawn before the year is up, the interest is prorated so that a proportional amount of the interest is paid out. If $600 is invested, what is the total amount that can be withdrawn when the account is closed out after 4 months?
Please help! :?

 

[Deleted member 4993]

An investment earns 7.5% simple interest in one year. If the money is withdrawn before the year is up, the interest is prorated so that a proportional amount of the interest is paid out. If $600 is invested, what is the total amount that can be withdrawn when the account is closed out after 4 months?
Please help! :?

Let us do similar but different problem:

An investment earns 12% simple interest in one year. If the money is withdrawn before the year is up, the interest is prorated so that a proportional amount of the interest is paid out. If $1000 is invested, what is the total amount that can be withdrawn when the account is closed out after 6 months?

Simple interest earned for 6 months = 1000 * 0.12 * 6/12 = $60

So the total amount that can be withdrawn after 6 months = 1000 + 60 = $ 1060