Gmat 看题列等式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

Gmat 看题列等式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
Gmat 看题列等式
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
xy = 70
x + y = 70
2x + y = 70
x + 2y = 70
2x + 2y = 70
answer D

Gmat 看题列等式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
x:实际年龄
y：工龄
x+y：是退休年龄
70是由退休年龄和工龄构成的,所以是2x+y

按题意，年龄＋任职年限＝70 可享受退休津贴
现在 x = 就职年龄， y 为任职年限，
因每过一年，任职年限加1，年龄也加1，
所以 最终当 x + 2y = 70 时，可享受退休津贴