Question

请教一个GMAT数学题

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.

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient

Answer 1

C.
Statement (1) 25%projects have 4 or more employees.
if a project has been assigned 6 employees, or 100 employees or any number of employees 4 or greater , then it is contained within this 25%.
No way to determine the median.
Insufficient.

Statement (2) 35% projects have 2 or fewer employees.
if 35% projects have 2 or fewer employees ,the rest of 65% can be any number.
No way to determine the median.
Insufficient.
Statements(1 )and (2) together
25% projects have 4 or more employees.
35% projects have 2 or fewer employees.
that means 40% projects not been assigned 4 or more employees or 2 or fewer employees ..
then the number is 3

Answer 2

To be honest,I'm not good at English.I can't understand it well.
However,I do well in math.Please translate the question into Chinese.Then I will give you a complete answer.

追问

英语写得这么溜还说不擅长。。。

Answer 3

E.设项目数为100个，排序得中位数为3