A and B can separately do a piece of work in 20 and 15 days respectively. They work together for 6 days, after which B was replaced by C. If the work was finished in next 5 days, then the number of days in which C alone could do the work will be______.

A and B can separately do a piece of work in 20 and 15 days respective

1.	A and B can separately do a piece of work in 20 and 15 days respectively. They work together for 6 days, after which B was replaced by C. If the work was finished in next 5 days, then the number of days in which C alone could do the work will be______.
A.	160 days
B.	150 days
C.	100 days
D.	125 days
Answer» D. 125 days

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A and B can separately do a piece of work in 20 and 15 days respectively. They work together for 6 days, after which B was replaced by C. If the work was finished in next 5 days, then the number of days in which C alone could do the work will be______.

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