The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

Question

Accepted Answer

Let original length = x and original breadth = y.

Original area = xy.

…

New length =

x

.

New area =	❨	x	x 3y	❩	=	3	xy.
		2				2

∴ Increase % =	❨	1	xy x	1	x 100	❩%	= 50%.
		2		xy

Discussion & Comments