jboog wrote:
Bunuel wrote:
macjas wrote:
At his regular hourly rate, Don had estimated the labour 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?
(A) 28
(B) 24
(C) 16
(D) 14
(E) 12
(A) 28
(B) 24
(C) 16
(D) 14
(E) 12
Say the regular hourly rate was\(r\) $ and estimated time was\(t\) hours, then we would have:
\(rt=336\) and\((r-2)(t+4)=336\) ;
So,\( (r-2)(t+4)=rt\)
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