Official Guide Explanation:
Data Sufficiency #96




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Solution and Metadata

Question: 96
Page: 281
Difficulty: 5 (Moderate)
Category 1: Word Problems > Data Interpretation >
Category 2: Geometry > Circles > other

Explanation: Since we're given the total expenses, we need to know what percent of the circle is represented by R. Statement (1) gives us that: a circle has a total of 360 degrees, so if x = 94, R represents (94/360) of the circle, from which we can find the dollar amount R represents. Statement (2) isn't enough: we don't know what percent S + T makes up, or what percent S + T + R makes up, so this ratio doesn't help us. The correct choice is (A).

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