SOLUTION: A milkman ordered his assistant to first remove 3 liters out og he 8 liters of a solution of milk and water and then add 3 liters of water to it.Thinking that it would not make any

Question 997311: A milkman ordered his assistant to first remove 3 liters out og he 8 liters of a solution of milk and water and then add 3 liters of water to it.Thinking that it would not make any difference , the lab assistant first added 3 liters of water and then removed 3 liters of the solution. Find the ratio of the expected concentration of the milk to actual concentration of the milk?
1)1:1 2)21:52 3)55:64 4)605:512 5)5:11
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
FOLLOWING INSTRUCTIONS:
Removing liters from liters leaves liters.
If the solution water content was liters if water per liter of original solution,
those liters of solution now contain
liters of water, and liters of milk.
Adding liters of water, you end up with a total of
liters of new, diluted solution, containing
liters of milk.
The expected milk concentration (as a volume/volume fraction) is

THE WAY THE ASSISTANT DID IT:
If the solution water content was liters if water per liter of original solution,
in the liters of original milk solution there was initially
liters of water, and liters of the milk.
After adding liters of water, the resulting solution had a volume of
liters of waters, containing liters of the milk.
The resulting milk concentration (as a volume/volume fraction) is
, and does not change on removing liters of solution.

The ratio of expected concentration of the milk to actual concentration of the milk is

.
RELATED QUESTIONS
Milk needs to be thinned to a ratio of 3 parts milk to 2 parts water. The milk-man has by (answered by josgarithmetic)

Pure milk costs Rs. 12 per litre. A milkman add some water to 16 litres of pure milk and... (answered by Theo)

a milkman purchases milk at$ 5 per liter and mixes it with water.if by selling the... (answered by stanbon)

there is a 75 liters solution of milk and water in which milk from 80%.how much watermust (answered by josmiceli)

In a 160 litre mixture of milk and water ,%of water is only 30%.the milkman gave 40... (answered by ankor@dixie-net.com)

a vendor bought 10 liters of milk at $10 and 20 liters of milk at $30. in what proportion (answered by josgarithmetic)

a vendor bought 10 liters of milk at $10 and 20 liters of milk at $30. in what proportion (answered by josmiceli)

160 litre mixture of milk and water ,%of water is only 30%.the milkman gave 40 litres... (answered by jorel555)

A pharmacist has 6 liters of an 8% boric acid solution. How much water should he add to... (answered by Edwin McCravy,josmiceli)