SOLUTION: Ther are 2 vessels P and q. P containing 120 liter of milk and Q containg 120 liters of water. In first operation 30 liter is removed from P and poured in Q and then 30 liter is

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Question 984508: Ther are 2 vessels P and q.
P containing 120 liter of milk and Q containg 120 liters of water.
In first operation 30 liter is removed from P and poured in Q and then 30 liter is poured back from Q to P.
Like this one more operation take place i.e transfering 30 liter from P to Q and then 30 liter is poured back from Q to P.
What is the ratio of milk and water in P finally
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The first mixing made 30 parts of milk and 120 parts water, a total of 120+30=150 parts. Ratio in tank Q is 30:120, as milk to water.
Tank P now has 90 parts total, of just milk.

The second mixing took out 30 parts from Q, and put into P.
90 parts of milk + 30%283%2F12%29 parts of milk, and 120-%2890%2B%281%2F4%2930%29 parts water.

At this stage, you should summarize exactly what you have in tank P and in tank Q; before going on to the two next mixings. I leave this unfinished intentionally.