各位 GWD11 数学 没看懂啊 帮帮忙吧

LeannaChina

Q22:
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:
Q23:
One kilogram of a certain coffee blend consists of x kilogram of type I coffee and y kilogram of type II coffee.The cost of the blend is C dollars per kilogram, where C = 6.5x + 8.5y.Is x < 0.8?
(1)y > 0.15
(2)C ≥ 7.30

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:
谢谢各位啦 ！！！！！不胜感激  


Q23:
One kilogram of a certain coffee blend consists of x kilogram of type I coffee and y kilogram of type II coffee.The cost of the blend is C dollars per kilogram, where C = 6.5x + 8.5y.Is x < 0.8?
(1)y > 0.15
(2)C ≥ 7.30

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:
谢谢各位啦 ！！！！！不胜感激

kazemi

Q22 C

1 说明75%的项目被分配了少于4个员工(不包括4)
2 说明65%的项目被分配了多于2个员工(不包括2)
这就说明至少50%以上的项目被分配了3个员工 (不能取2,4,又必须是整数,那就只有3了)
中值是指一串数排序后中间大的那个,如果一半以上的项目都被分配了3个员工, 显然中值是3

kazemi

Q23 B

1 明显排除可以得到确定回答是吧
2 把y = 1 - x代入C = 6.5x + 8.5y算一下你就明白了

LeannaChina

敢问 大侠？？？？ x+y=1是哪里来的。。。sorry  我数学不好 麻烦您啦

Avengeryzc

题目告诉你的，x和y混合了1 kliogram，so x+y=1