[求助]TTGWD15-5 没有讨论

xiaoxinxin

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.

答案：E

请问：为什么B不对呢？都是整数啊

karen_gao

QUOTE:

以下是引用liaotao85在2008-12-5 7:12:00的发言：

why not C??

help!!!

因为两个条件合在一起也解不出来。假设staff members 为a

根据1，x:y:z=2:3:4;

根据2，ax=18, ay=27, az=36

仍然求不出a

liaotao85

why not C??

help!!!

xiaoxinxin

3x!

yumeeiko

B员工可以是1人（18：27：36）；可以是3人（6：9：12）；可以是9人（2：3：4）