A.  9 (1/5) days

B.  9 (2/5) days

C.  9 (3/5) days

D.  10

1
Correct Answer :
9 (3/5) days
Explanation :

(A + B + C)'s 1 day's work = 1/4

A's 1 day's work = 1/16

B's 1 day's work = 1/12

=> C's 1 day's work = 1/4 - ( (1/16) + (1/12) ) = 5/48

So, C alone can do the work in 48/5 = 9 (3/5) days

 


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