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by GmatKiss » Fri May 25, 2012 3:22 am
What is the median number of employees assigned per project for the projects at Company Z?

(1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project.
(2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.
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Source: — Data Sufficiency |

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by Anurag@Gurome » Fri May 25, 2012 3:26 am
GmatKiss wrote:What is the median number of employees assigned per project for the projects at Company Z?

(1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project.
(2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.
Both the statements separately are NOT SUFFICIENT to answer the question.

Next combine both the statements: (1) covers the possibilities when there are 4 or more employees in each project, and (2) covers the possibilities when there are 2 or fewer employees in each project. This implies that no. of employees not covered for each project is 3.

Therefore, 100% - (25% + 35%) = 40% of the projects have 3 employees assigned to each project.

So, combining the statements is SUFFICIENT.

The correct answer is C.
Anurag Mairal, Ph.D., MBA
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by GmatKiss » Fri May 25, 2012 3:53 am
You made it look easy.. Cool explanation :)

Thanks :)
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