Question

A alone can do a work in 9 days,whereas B can do it in 18 days. If they work together, then the work will be completed in,


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Answer 1

Step-by-step explanation:

Work done by A in one day = 1/9

Work done by B in one day= 1/18

So,Work done when both A and B work on the same task for one day= (1/9)+(1/18) = 1/6

Concluding,

If 1/6th part of work is done by both in one day then they will require 6 days to complete the task fully

For example if you have to write a full page and you write half of it in one day then you will require 2 days to write full page

So,A and B will require a total of 6 days to complete the work if they work together.

Thank you.