Question

If 20% of a certain quantity of work is done by A and
after that the remaining 80% of the work is done by
B, the work will be completed in 20 days. If 80% of
the work is done by A and after that the remaining
20% of the work is done by B, the work will be
completed in 30 days. If A & B work together how
many days are required to complete the work?
(A) 11179 (B) 10/9 (C) 12
(D) 15​

Answer 1

Answer:

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