In: Finance
(a ): Value of $20,000 at the end of 6 years= $34,251.05 as follows:
(b): Number of months required to double the amount with 9% interest compounded monthly is the value of ‘n’ in the following formula:
$40,000 = $20,000*(1+9%/12)^n
1.0075^n=40,000/20,000 =2
n= 92.76582749 as follows:
Therefore, time required for the amount to be twice the amount of investment= 92.765827 months or 7 years and 8.77 months.
(c ): Interest rate required= 13.943328% as follows: