求助GWD2(TT2)--33, 36.

Q36:

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: C

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A.     16%

B.     25%

C.     32%

D.     40%

E.      52%

Answer: B

1. Combine the two conditions, you can know that there are 40% projects that have exactly 3 employees. The median is then 3.

2. % of employed females in the entire population: 64%-48%=16% => % of employed females in the employed population: 16%/64%*100%=25%.

谢谢，解答了困惑

40% of the projects at the company have exactly 3 employee.How can u reason?Could u pls indicate?

Q36:

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: C

Q33:

x = total population
total employed = 0.64x
males employed = 0.48x

females employed = 0.64x-0.48x = 0.16x
%females of total employed = 0.16x*100/0.64x = 25
Answer B

Q36:

Statement 1:

25% projects - 4 or more. Not suff

Statement 2.

35% projects - 2 or less. Not suff

Combing 1 and 2,

35% projects - 2 persons or less nand 35% projects- 4 or more.

So remaining 40% projects- # or ppersoons assigned is between 2 and 4, not inclusive. So it should be 3 persons per project.

median
        is the midpoint. So the answer should be 3. Sufficient.

HENCE C.

Q33:

Another short cut:

% of females employed = (64-48)/64 *100 = 16/64*100=1/4*100=25%

还是不明白。。。 for statement 1, 假设25%的project被安排了4及以上的人，假设是4，5，6，7. 那么数列中所有可能被安排的人数是1，2，3，4，5，6， 那么median不就是应该是4了吗？