How to find the midpoint of a line segment - GRE Quantitative Reasoning

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Question

What is the midpoint of (2, 5) and (14, 18)?

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Answer

The midpoint between two given points is found by solving for the average of each of the correlative coordinates of the given points. That is:

Midpoint = ( (2 + 14)/2 , (18 + 5)/2) = (16/2, 23/2) = (8, 11.5)

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