Question

A
project
can be completed
by 75 workers in 40 days,
být project manager brought
15 more workers after 8 days
In how many days will be
remaining work be finished.​

Answer 1

Answer:

26 and 2/3 days

Step-by-step explanation:

1 worker does (1/75)(1/40) of work per day

After 8 days of using 75 workers,

(75)(8)(1/75)(1/40) = 1/5 of work has been completed.

4/5 of work is still outstanding.

After 8 days, 15 more workers have been hired, which brings the total to 90 workers.

Let the number of additional days required be x

(90)(x)(1/75)(1/40) = (4/5)

(90/3000)(x) = (4/5)

(3/100)(x) = 4/5

x = (4/5)(100/3)

x =400/15

x = 80/3

x = 26 and 2/3 days