Question 71

A solution of milk and water contains milk and water in the ratio of 3 : 2. Another solution of milk and water contains milk and water in the ratio of 2 : 1. 40 liters of the first solution is mixed with 30 liter of the second solution. The ratio of milk and water in the resultant solution is:

Solution

Ratio of milk to water in solution 1 is 3:2
Solution 1 contains 40 liters.
Milk content in solution 1 =(3/5)*40
=24 liters 
Water content=40-24=16 liters
Ratio of milk to water in solution 2 is 2:1
Solution 2 contains 30 liters.
Milk content in solution 2 =(2/3)*30
=20 liters 
Water content=30-20=10 liters
Total milk content=24+20=44 liters
Total water content =16+10=26 liters
Ratio=22:13


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