A) 11.75 litres
B) 12.5 litres
C) 10 litres
D) 14 litres
E) 13.25 litres
Correct Answer: C
Solution :
In 40 litres mixture the amount of milk\[=40\times \frac{3}{10}=12\,litres\] and water\[=40\times \frac{7}{10}=28\,litres\] Let 5x litres mixture from 2nd pot be poured into the first pot. In 5x litres, milk is 4x litres and water is x litres. Now, \[\frac{12+4x}{28+x}=\frac{2}{3}\] or, \[3(12+4x)=2(28+x)\] or, \[12x-2x=56-36\] or, \[10x=20\] \[\therefore \]\[x=2\] \[\therefore \] Reqd amount of the mixture\[=5\times 2=10\,litres\]You need to login to perform this action.
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