A is thrice as good a workman as B and takes 10 days less to do a piec – McqOptions

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1.	A is thrice as good a workman as B and takes 10 days less to do a piece of work than B takes. B alone can do the whole work in ?
A.	12 days
B.	15 days
C.	20 days
D.	25 days
Answer» C. 20 days

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