Question

What is the effect on the volume of a rectangular prism if the width is doubled and the hight is reduced to half of the original height?

A) the volume is doubled.
B) the volume is halved.
C) the volume is tripled.
D) the volume is unchanged.

Answer 1

The volume of a rectangular prism is given by: 
V = lwh
twice the length: 2l, twice the width: 2w , half the height 1/2h:  
The volume of new prism: 
2l*2w*1/2h 
Factor: 
2*2*1/2*l*w*h
So the volume is twice the original volume.
Thus the Answer is  A) the volume is doubled.