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NTSE Sample Paper NTSE SAT Practice Test-15

  • question_answer
    A dishonest milkman professes to sell his milk at the cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is         

    A) 4                                 

    B) \[6\frac{1}{4}\]

    C) 20             

    D) 25

    Correct Answer: C

    Solution :

    [c] Let the C.P. of the milk be Re. 1 per litre. SP = 125% of Re 1 = Rs. 1.25 Gain = 0.25 On every Rs. 1.25, his gain is 0.25 \[\therefore \] Gain% = \[\frac{0.25}{1.25}\text{ }\times 100%\]= 20%                  


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