Question

A can do a piece of work in 20 days which B alone can do in 12 days. B worked at it for
9 days. A can finish the remaining work in
(a) 3 days
(b) 5 days
(c) 7 days
(d) 11 days
please give the solution step by step​

Answer 1

Answer:

The answer is 3 day

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Answer 2

Answer:

in 11 days as he is working alone

Step-by-step explanation:

don't know the steps