GRE Math : How to find a ratio

Study concepts, example questions & explanations for GRE Math

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Example Questions

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Example Question #21 : Proportion / Ratio / Rate

A fence has a post that is 5 in wide. The fence is constructed with 5 foot pieces. What is a possible length of a straight fence if it starts and ends with a post with a post between each piece of fence.

Possible Answers:

Correct answer:

Explanation:

You must convert all the measurements to inches first so the fence pieces will be  

.  

For one piece of fence, it would be two posts and one fence piece 

.

For two pieces of fence, it would be three posts and two pieces of fence which would be the answer of 

.

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