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Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-19

  • question_answer
    A man buys milk at Rs 6 per litre and adds one third of water to it and sells mixture at \[Rs\text{ }7.20\]per litre. The gain is

    A)  40%                           

    B)  80%               

    C)  60%                           

    D)  25%               

    Correct Answer: B

    Solution :

    [c] P. of one litre ='6 After adding water to it                                    One has to pay Rs 7.20 for \[\frac{2}{3}\] litre of milk.                     So S.P. of - litre of milk = Rs 7.20                              = S.P. of 1 litre of milk  \[=Rs\frac{7.20\times 3}{2}=Rs.10.80\] \[\because \] \[S.P.>C.P.\] Hence gain \[=\frac{10.80-6}{6}\times 100=\frac{4.80}{6}\times 100\] \[=0.80\times 100=80%~\]                            


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