Each dimension of a rectangular prism is increased by 30%. What percent of the original volume is the volume of the new prism?

Question

Each dimension of a rectangular prism is increased by 30%.  What percent of the original volume is the volume of the new prism?

anonymous · Answer

Original volume V1=lxwxh. 10% increase in each means you get 

V2=(l+0.3l)(w+0.3w)(h+0.3h)=(1.3l)(1.3w)(1.3h)=2.197xlxwxh=2.197V2

You have a 119.7% increase in volume.

anonymous · Answer

That isn't one of the options though :/

		169%
		9%
		2.7%
		219.7%

anonymous · Answer

Read what I wrote carefully. 119.7% is the increase in volume. What's the question asking for?

anonymous · Answer

Oh, okay, I didn't see that. So the answer is 219.7%. Thank you!

anonymous · Answer

Welcome.