Question

- A and B together can complete a work in 14 days. B is twice as good a workman as A. In how many days can B alone do it?​

Answer 1

Answer:

Let B finishes work in = x days

A will finish the work in = x/2 days

1 day of work done by both together is

2/x + 1/x = 1/14

3/x = 1/14

x = 42

So B will complete work in 42 days

And A will complete in 21 days