Each dimension of a rectangular prism is increased by 80%. What percent of the original volume is the volume of the new prism?

51.2 percent

324 percent

583.2 percent

64 percent

Question

Each dimension of a rectangular prism is increased by 80%.  What percent of the original volume is the volume of the new prism? 

 51.2 percent 

 324 percent 

 583.2 percent 

 64 percent

anonymous · Answer

someone help me plzzz

shane_b · Answer

$$A_{rectprism}=LWH$$So if you reduce each dimension to 80%, it would be:$$5.832 A_{rectprism}=1.8L*1.8W*1.8H$$Which is 583.2%.

anonymous · Answer

woowwww thats great thnx guys!!!!!!!!!!!!!

shane_b · Answer

@maheshmeghwal9: I'm not sure what you did there :P

shane_b · Answer

and I meant *increase* in the above...not reduce :P

maheshmeghwal9 · Answer

I have also increased
u must see clearly:)

shane_b · Answer

I wasn't talking about whether you increased it or decreased it...your solution just seems a lot more complicated :)

maheshmeghwal9 · Answer

oh 
sorry!
ok!