作者sandisk (.)
看板GMAT
标题[计量] GWD 23-17
时间Wed Sep 24 10:02:58 2008
To be eligible for retirement benefits at the Omega Corporation, the sum of
an employee's age, in years, and the number of years of employment must be at
least 70. If x, where x < 70, is a certain employee's age when hired and y
is the minimum number of years of employment required for the employee to be
eligible for retirement benefits, which of the following equations represents
the relationship between x and y ?
A. xy = 70
B. x + y = 70
C. 2x + y = 70
D. x + 2y = 70
E. 2x + 2y = 70
Answer: D
就看题目的意思很像是B
不懂为什麽答案是D
谢谢解答
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