Question

1) To complete a task in 9 days a company needs 5 people each working 8 hours per day. The company instead decides to have 6 people working 5 hours per day. Assume that each person works at the same rate.

a) How many days will the task take to complete?​

Answer 1

Explanation:

the task takes 5 people working 8 hours a day for 9 days.

so, in total, it takes

5×8×9 = 360 individual work hours to compete the task.

now 6 people will work 5 hours per day. that is

6×5 = 30 work hours per day.

we still need to do 360 work hours in total, so we need

360/30 = 12 days to complete the task.