A certain investment takes 18 years to grow 5 times.How long would it

1.	A certain investment takes 18 years to grow 5 times.How long would it take to double itself? What annualrate of simple interest does the investment earn?
Answer» Answer: Step-by-step EXPLANATION: RATE r = 100xI/pn. (I INTEREST, P principal, n=no. of yrs) r = 4px 100/px 18=22 2/9% n =.px loox9/px 200=4.5 yrs Rate 22 2/9% and period: 4.5 yrs

A certain investment takes 18 years to grow 5 times.How long would it take to double itself? What annualrate of simple interest does the investment earn?

Answer»

Answer:

Step-by-step EXPLANATION:

RATE r = 100xI/pn. (I INTEREST, P principal, n=no. of yrs)

r = 4px 100/px 18=22 2/9%

n =.px loox9/px 200=4.5 yrs

Rate 22 2/9% and period: 4.5 yrs