A is thrice good a workman as B and therefore is able to finish a job in 40 days less than B. Working together they can do it in:

A is thrice good a workman as B and therefore is able to finish a job

1.	A is thrice good a workman as B and therefore is able to finish a job in 40 days less than B. Working together they can do it in:
A.	15 days
B.	16 days
C.	18 days
D.	20 days
Answer» B. 16 days

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A is thrice good a workman as B and therefore is able to finish a job in 40 days less than B. Working together they can do it in:

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