Question

A can do a piece of work in 10 days and B can do in 15 days in how many days would they finish the work if they do it

Answer 1

A can do a piece of work in 10 days and B can do it 15 days. If both of them are working together, half of the work can be finished in?

Here we find,LCM of 10 and 15 is 30.

• A can do ( 1 /10 th ) of the work in one day Or, ( 3/30th ).

• B can do ( 1/15th ) of the work in one day ( or 2/30th ).

Working together, A and B can do

• = (3/30) + (2/30)

• = 5/30

• = 1/6 th of the work in one day.

So, they would require 30/5 or 6 days to complete the task.