# Question #72249

Oct 18, 2017

Man hours...13 days needed to complete the same task.

#### Explanation:

Total man hours for the first situation:
$T M H = 39 \times 5 \times 12 = 2340$ man hours in a day.

How many days needed to complete the same job with 30 man and 6 hours average for a man per day:

$\frac{T M H}{30 \times 6} = \frac{2340}{30 \times 6} = 13 \mathrm{da} y s$