Mathematics
A can do a work in 15 days and B in 20 days. If they work together on it for 4 days, what fraction of the work will be left?
Direct & Inverse Variations
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Answer
A's 1 day work =
B's 1 day work =
(A + B)'s 1 day work =
=
=
(A + B)'s 4 day work =
=
Remaining work =
=
=
Hence, work wil be left.
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