[問題]GWD23-17

[magic]

Q17:
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
答案是D
我想請問一下2y是怎麼來的阿??

[kwtluck]

你應該是忽略了每增加一年,工作年資多一年,員工也會多一歲

ex.x=42歲,42+2y(工作年資多一年+多一歲)=70
x=43歲,43+2y(工作年資多一年+多一歲)=70

[magic]

謝謝^^