Question

Question #72249

Answer 1

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

Explanation:

Total man hours for the first situation:
`TMH=39times5times12=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:

`(TMH)/(30times6) = 2340/(30times6) = 13 days`