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

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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.	16
C.	10
D.	12
Answer» C. 10

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