Multiple Choice Questions on Milk contain 10 of water What quantity of pure milk is should be added to 15litre of milk to re........... for Combined State Civil Services Preparation

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Multiple Choice Questions

Milk contain 10 of water What quantity of pure milk is should be added to 15litre of milk to re...........

Quantitative Aptitude (CSC) Percentage
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    Milk contain 10% of  water.What quantity of pure milk is should be added to 15litre of milk to reduce the water percentage is 7%

     

    6 lit
     

    Incorrect Answer

    6.4 lit
     

    Correct Answer

    6.2 lit
     

    Incorrect Answer

    6.6 lit

    Incorrect Answer
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    Explanation:

    10% of water in 15 lit of milk =(10/100) × 15 = 1.5
    X lit of pure milk added to reduce water to 7% = (1.5)/(x+15) =7/100 150  =  105+7x
    7x   = 45
    X  = 45/7 = 6.4lit

    By: Sandeep Dubey
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