Determining missing items in return on investment computation

One item is omitted from each of the following computations of the return on investment:

Return on Investment	=	Profit Margin		Investment Turnover
27%	=	10%		(a)
(b)	=	12%		0.75
24%	=	(c)		1.5
12%	=	20%		(d)
(e)	=	15%		1.6

Determine the missing items identified by the letters as shown above. If required, round your answers to two decimal places.

Item	Answer
(a)
(b)	%
(c)	%
(d)
(e)	%