'A' can do a piece of work in x days and B can do the same work 3x days. To finish the work together they take 12 days. What is the value of x ?

'A' can do a piece of work in x days and B can do the same work 3x day

1.	'A' can do a piece of work in x days and B can do the same work 3x days. To finish the work together they take 12 days. What is the value of x ?
A.	8
B.	10
C.	12
D.	16
Answer» E.

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'A' can do a piece of work in x days and B can do the same work 3x days. To finish the work together they take 12 days. What is the value of x ?

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