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Milk and condensed water is mixed to form a dilute solution. The price of the condensed water and milk is Rs. 28.5 and Rs. 51 per kg respectively . In what ratio should milk be mixed with 60 kg of condensed water so that the overall price of the mixture is Rs. 39 per kg.  

Milk and condensed water is mixed to form a dilute solution. The price of the condensed water and milk is Rs. 28.5 and Rs. 51 per kg respectively . In what ratio should milk be mixed with 60 kg of condensed water so that the overall price of the mixture is Rs. 39 per kg.   Correct Answer 102

Given:

Milk and condensed water is mixed to form a dilute solution. The price of the condensed water and milk is Rs. 28.5 and Rs. 51 per kg respectively . 

Formula:

Ratio = (Dearer price - mean)/(mean – cheaper price)

Calculation:

Ratio in which the two items should be mixed = (60 - 39)/(39 – 28.5) = 21 /10.5 = 2 : 1

Let the quantity of the milk to be added be x kg.

Ratio = 2 : 1 = x : 51

⇒ x = 102

Therefore 102 kg is required.

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