1、If company M ordered a total of 50 computers and printers and company N ordered a total of 60 computers and printers. How many computers did company M ordered?
(1) company M and company N ordered the same number of computers
(2) company N ordered 10 more printers than company M
答案是(5)。 为什么不是(3)呢??
2、If x、y and z are integers greater than 1, what is the value of x+y+z?
(1)xyz=70
(2)x/yz=7/10
答案是(1)。为什么不是(4)??作者: taohuaxian 时间: 2010-6-19 22:18