Question

A and b can do a job in 2 days. If a alone can do the same job in 6 days. How many days will be taken by b to do the job alone?

Answer 1

A & B work 2 days

1/a +1/ b = 1/2

ATQ

a= 6

1/b= 1/2 -1/6= 2/6=1/3

b=3

so be can alone do the work in 3 days.