how many days will the task take to complete ?

Question

To complete a task in 15 days a company needs 4 people each working for 8 hours per day.

 

The company decides to have 5 people each working for 6 hours per day.

 

Assume that each person works at the same rate.

 

How many days will the task take to complete?

Answer 1

The job needs 480 man/hours (12 * 8 * 4)

5 people at 6 hours produce 30 man/hours

 

480 / 30 = how many days?