Question

A and B together can do a piece of work in 35 days .while a alone can do it in 60 days how long would b alone take to do it.

Answer 1

1/A +1/B =1/35

ATQ

A= 60

B= ?

1/B= 1/35 -1/60 = 5/420 = 1/84

B= 84 days

So
B can alone do the work in 84 days