Question

1. automotive trades an auto repair shop allots 1.2 hr to replace a fan belt. the mechanic actually spends 1 hr 20 min doing the job. by how many minutes did the mechanic exceed the allotted time?

Explanation:

Step1: Convert allotted time to minutes

Since \(1\) hour \( = 60\) minutes, \(1.2\) hours \(=1.2\times60 = 72\) minutes.

Step2: Convert actual time to minutes

\(1\) hour \(20\) minutes \(=60 + 20=80\) minutes.

Step3: Calculate the excess time

Subtract the allotted time from the actual time: \(80 - 72=8\) minutes.

Answer:

\(8\) minutes