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

1

Is rw = 0

Is rw = 0?

1 Explanation

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 13th Ed.

Official Guide for the GMAT 2015 14th Ed.

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Official Guide for the GMAT 12th Ed.

Revised GRE PDF 2nd Ed.


Section 6.3 Data Sufficiency

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