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Is z equal to the median? (GMAT Prep 1)

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Source: — Data Sufficiency |

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by Anurag@Gurome » Sun Jul 15, 2012 12:49 am
alex.gellatly wrote:Is z equal to the median of the three positive integers x, y, and z?

1. x<y+z
2. y=z
Statement 1: consider the following cases,
  • x = 2, y = 1, z = 3 ---> Median is x --> NO
    x = 2, y = 4, z = 3 ---> Median is z --> YES
Not sufficient

Statement 2: As y is equal to z, the three numbers are z, z, and x.
Hence, whether x is greater than or less than or equal to z, the median of these three numbers is z.

Sufficient

The correct answer is B.
Anurag Mairal, Ph.D., MBA
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