1 A can do 2/3 of a certain work in 16 days and B can do 1/4 of the same work in 3 days. In how many days can both finish the work, working together?
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A does
3
2
work in 16 days.
Therefore, A can do whole work in 16×
2
3
=24 days
B does
4
1
work in 3 days.
Therefore, B can do whole work in 12 days.
1 day's work of A and B together =
24
1
+
12
1
=
8
1
Therefore, A and B can together finish the work in 8 days.
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