Question

when two persons work together than their one day work to be​

Answer 1

Step-by-step explanation:

Let A takes x number of days and B takes y number of days to complete work individually.

Therefore, 1/x +1/y = 1/p

In q days they can complete q/p work

Remaining work is 1 - q/p = (p-q)/p

This work is done by B in r days =>((p-q)/p)/(1/y) = r

Therefore, 1/y = (p-q)/p*r

Hence 1/x = 1/p - (p-q)/p*r = (r-p+q)/p*r

Therefore, A takes p*r/(r-p+q) days and B takes p*r/(p-q) days