Management Aptitude Test Dec 2012 Paper

Question : 111 of 200

Marks: +1, -0

Two casks of 48 L and 42 L are filled with mixtures of milk and water, the proportions in the two casks being respectively, 13:7 and 18 : 17. If the contents of the two casks be mixed and 20 L of water be added to the whole, what will be the proportion of milk and water in the resulting mixture?

5 : 12
7 : 13
12 : 13
8 : 15

Validate

Solution:

13/20×48+18/35×42

158/5+108/5=264/5

L
Quantity of water =

7/20×48+17/36×42

.84/5+102/5=186/5

L
When 20 L of water to be added to the mixture, then
quantity of water =

186/5+20

{186+10}/5=286/5

L
Thus. required ratio =

264/5:286/5

= 12 : 13

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