Two mechanics were working on your car.
Two mechanics were working on your car. One can complete the given job in 4 hours, but the new guy takes eight hours. They worked together for the first two hours, but then the first guy left to help another mechanic on a different job. How long will it take the new guy to finish your car?
Answer/Solution
2
Steps/Work
Rate(1)=1/4
Rate(2)=1/8
Combined = 3/8
Work done in 2 days=3/4
Work left = 1/4
Rate * Time = Work left
1/8 * Time = 1/4
Time=2
A
Rate(2)=1/8
Combined = 3/8
Work done in 2 days=3/4
Work left = 1/4
Rate * Time = Work left
1/8 * Time = 1/4
Time=2
A