i give medals!
According to the rule of 72, if Holly invests $200, $400, and $1000 into three separate accounts with the same interest rate, which amount will double fastest?

A. $200
B. $400
C. All will double at the same rate.
D. $1000

Question

i give medals! 
According to the rule of 72, if Holly invests $200, $400, and $1000 into three separate accounts with the same interest rate, which amount will double fastest?

 		A.	$200
 		B.	$400
 		C.	All will double at the same rate.
 		D.	$1000

anonymous · Answer

It's something of a trick question: if the accounts have the same interest rate, then any amount of money will double at the same rate. The answer is C.