A man and woman together complete a work in 8 days. If man alone takes 10 days to complete the work, Find the number of days taken by woman alone to complete the same work.
A and B together takes 10 days to complete a work. And A alone takes 30 days to complete the same work. Find the number of days to complete the work by B alone.
A takes 18 days to complete a work, and B takes half time as A. Find the total days to complete the work.
A takes 15 days to complete a work, and B takes 20 days to complete the same work. Both work for 4 days. What fraction of work is left?
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