Question

There are two vessels of equal capacity one
full of milk and the second one-third full of
water. The second vessel is then filled up by
the first, the contents of the second are then
poured back into the first till it is full and then
again the contents of the first are poured in
the second till it is full. What is the proportion
of milk in the second vessel?
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Answer 1

let first vessels is x
second vessel is x=1/3x
x-1/3x
2/3x ans