T and V started the work. After 3 days Z joined them, who can complet – McqOptions

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1.	T and V started the work. After 3 days Z joined them, who can complete alone the same whole work in 3 days. What is the total number of days in which they had completed the work?
A.	12
B.	8
C.	4
D.	6
E.	None of these
Answer» D. 6

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