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A can complete 1/3rd of a piece of work in 4 days and B can complete 1/6th of the same work in 3 days. In how many days will A and B can complete the same work, working together?

A.	6 1/3	B.	8
C.	7 1/5	D.	7

Answer and Explanation

Answer:7 1/5

Explanation:
A’s 4 day’s work = 1/3
A’s 1 day’s work = 1/12
B’s 3 day’s work 1/6
B’s 1 day’s work = 1/18
(A+B)’s 1 day work = 1/12 + 1/18 = 5/36
A and B together will complete the work in 36/6 days
= 7.2 days

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