Question

8 persons working 10 hours a day can dig a trench in 12 days. In how many days
Let number of days be x.
will 12 persons working 8 hours a day dig the same trench?​

Answer 1

Answer:

As No. Of people increases, working days decreases . So they will be in direct proportion. Let “x” be the no. Of Days when 15 people works,20*12=15*x,

x=(20*12)/15

x=16

So 16 days are required when 15 people are employed to complete the work