Question

2. 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
A . I dare which alone can do in 20 days. A started the work​

Answer 1

d. 11 days........

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