Official Guide Explanation:
Problem Solving #77




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Solution and Metadata

Question: 77
Page: 163
Difficulty: 3 (Very Easy)
Category 1: Word Problems > Other >
Category 2: Algebra > Equations >

Explanation: The question gives us two equations. First, w = m + 4. Second, m + w = 10. Substitute the first equation into the second as follows: m + (m + 4) = 10, or 2m = 6, or m = 3. If there are three men, that leaves seven women, choice (D).

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