Aricent placement exam, answer this question.

Q. Pure milk costs Rs. 16/- per liter. After adding water the milkman sells the mixture @ Rs. 15/- per liter and thereby makes a profit of 25% in what respective ratio does he mix milk with water? A) 3 : 1 B) 4 : 3 C) 3 : 2 D) 5 : 3 E) 4 : 1

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  • Answer is option A
     
    Explanation:
     
    If SP of mixture is 15/- per liter and profit is 25%, then 
    CP of mixture = (100/125) * 15 = 12/- liter 
    As 16/- is the cost of pure 1000 ml, therefore, for 12/-, the quantity of milk = 
    (12/16) * 1000 = 750 ml 
    So for 12/- per liter, the milk is 750 ml, then water will be 250 ml. 
    Thus, required ratio = 750:250
    = 3:1
    0
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