GWD15-5 答案是不是错了?

Amber789

Q5:

A department manager distributed a number of pens, pencils, and pads among the staff in the department, with each staff member receiving x pens, y pencils, and z pads.  How many staff members were in the department ?

(1)   The numbers of pens, pencils, and pads that each staff member received were in the ratio 2 : 3 : 4, respectively.

(2)
              The manager distributed a total of 18 pens, 27 pencils, and 36 pads.

                  

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.

答案是E

可我怎么觉得是C啊.

1)单独不充分, 因为可以得出很多数值.

2)单独也不充分, 因为可以得出2:3:4 (9人)和 6:9:12 (3人)

1)+2) 不是挺好吗? 可以得知人数是9啊.

请大家帮忙分析分析.

kingwin

不是啊，那是比例啊，也可一个人就分的18，27，36，结果他所分的的各种文具的比例还是2，3，4啊，当然这是个特例～还是不能确定有多少人哦～

jh1904

lz都已经写出来了，6:9:12不就等于2:3:4吗，所以1+2还是有3跟9，再加上ls所说的1。

Amber789

嘿嘿, 这老半天我才转过弯来. 6:9:12 就是说2:3:4.真是自找套子钻.谢谢两位了.