Source: Official Guide for GMAT Review 2016 Data Sufficiency ; #16

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1

Is rw = 0

Is rw = 0?

1 Explanation

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1

Danny Watts Jr

1: -6 < r < 5; NOT SUFFICIENT because it does not give any information about w.
2: 6 < w < 10; NOT SUFFICIENT because it does not give any information about r.
Combined: NOT SUFFICIENT because the information is too broad. We know that w is a positive integer, but we do not have any information to determine if r is 0 or a different integer. Therefore, the answer is E.

Nov 25, 2017 • Comment

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Official GMAT Material

Official Guide for GMAT Review 2016

Official Guide for the GMAT 2015 14th Ed.

Official Guide for the GMAT 13th Ed.

Official Guide for the GMAT 12th Ed.

Revised GRE PDF 2nd Ed.

Section 6.3 Data Sufficiency

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