A can do a piece of work in 4 days and B can complete the same work in 12 days. What is the number of days required to do the same work together?

A can do a piece of work in 4 days and B can complete the same work

1.	A can do a piece of work in 4 days and B can complete the same work in 12 days. What is the number of days required to do the same work together?
A.	2 days
B.	3 days
C.	4 days
D.	5 days
Answer» C. 4 days

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A can do a piece of work in 4 days and B can complete the same work in 12 days. What is the number of days required to do the same work together?

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