A is twice as good a workman as B and they took 7 days together to do the work B alone can do it in.

A is twice as good a workman as B and they took 7 days together to

1.	A is twice as good a workman as B and they took 7 days together to do the work B alone can do it in.
A.	12 days
B.	18 days
C.	21 days
D.	27 days
Answer» D. 27 days

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A is twice as good a workman as B and they took 7 days together to do the work B alone can do it in.

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