GMAT Math : Prisms

Study concepts, example questions & explanations for GMAT Math

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Example Questions

Example Question #355 : Data Sufficiency Questions

Find the height of a box used to ship a computer, given the following:

I) The computer, along with all the cushioning, will take up a space of .

II) The width of the box will be  the length of the box.

Possible Answers:

Either statement is sufficient to answer the question.

Both statements are needed to answer the question.

Statement II is sufficient to answer the question, but statement I is not sufficient to answer the question.

Statement I is sufficient to answer the question, but statement II is not sufficient to answer the question.

Neither statement is sufficient to answer the question. More information is needed.

 

Correct answer:

Neither statement is sufficient to answer the question. More information is needed.

 

Explanation:

Find the height of a box used to ship a computer, given the following:

I) The computer, along with all the cushioning, will take up a space of 

II) The width of the box will be  the length of the box

 

Begin by recalling the volume of a rectangular prism formula:

Where l,w and h are length, width and height.

Next, use II) to set up a relationship between w and l

Then, use the voume formula:

As you can see, we still have two unknowns, and no way of finding either. 

Therefore, we do not have information.

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