Question

5) A and B can do a piece of work in 15 days. A alone can finish it in 20 days. How many days will
alone take to finish the same work?​

Answer 1

Answer:

A and B can do a piece of work in 15 days.

A and B's one day work = 1/15

A takes 20 days to work alone.

A's one day work=1/20

B's one day work :

A and B's one day work - A's one day work

1/15 - 1/20

(4-3) /60

1/60

B alone takes 60 days to finish the work.

Step-by-step explanation:

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