At his regular hourly rate, Don had estimated the labor cost of a repair job as $336 and he was paid that amount. However, the job took 4 hours longer than he had estimated and, consequently, he earned $2 per hour less than his regular hourly rate. What was the time Don had estimated for the job, in hours?_老师好，这道题我虽然能算出来但是为了计算需要花很长时间。是我计算能力问题还是列方程有误？如图，红色部分是我的重点疑惑。[img=/uploads/askimgs/gmat-20220725-105832.jpeg]出国考试答疑器_GMAT

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题目：

At his regular hourly rate, Don had estimated the labor cost of a repair job as $336 and he was paid that amount. However, the job took 4 hours longer than he had estimated and, consequently, he earned $2 per hour less than his regular hourly rate. What was the time Don had estimated for the job, in hours?

选项:

A、28

B、24

C、16

D、14

E、12

提问：

老师好，这道题我虽然能算出来但是为了计算需要花很长时间。是我计算能力问题还是列方程有误？如图，红色部分是我的重点疑惑。

解答：

阅读731

解答：徐小梅

提问：

老师好，这道题我虽然能算出来但是为了计算需要花很长时间。是我计算能力问题还是列方程有误？如图，红色部分是我的重点疑惑。

解答：

阅读732

解答：徐小梅老师

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