S does half as much work as T in 1/7 of the time taken by T. If togeth – McqOptions

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1.	S does half as much work as T in 1/7 of the time taken by T. If together they take 21 days to complete a work, then how many days shall S take to complete that work alone?
A.	26
B.	27
C.	28
D.	32
Answer» C. 28

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