A mixture of 85 kg contains milk and water in the ratio 27 : 7. How much more water is to be added to
get a new mixture containing milk and water in the ratio 3:1?  Choose the correct choice from the following answers
A) 5 kg  B) 6.5 kg  C) 7.5 kg  D) 8 kg  E) 9 kg
Explanation :   Expl : Milk in 85 kg of mix = 85* (27/34) = 135/2 kg.   Water in it = 85-135/2 = 35/2 kg.   Let x kg of water be added to it.   Then, (135/2)/(35/2 + x) = 3/1; 135/(35 +2x) = 3/1;   105 + 6x = 135 ; 6x = 30; x = 5   The quantity of water to be added = 5 kg   5 kgnswer :5 kg
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A mixture of 85 kg contains milk and water in the ratio 27 : 7. How much more water is to be added to
get a new mixture containing milk and water in the ratio 3:1?