A can do a piece of work in 14 days which b can do in 21 days. They begin together but 3 days before the scheduled completion of the work, a leave off. The total number of days to complete the work is nearly ?
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1
Answer:
let the number of days=x
then a can do a work in 14days
b can do in 21days
14×21
they can do work together in 3 days
14×21 upon3
answer is 112
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Answer:
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