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Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-15

  • question_answer
    If the manufacturer gains 10%, the wholesale dealer 15% and the retailer 25%, then find the cost of production of a table, the retail price of which is Rs.1265?

    A)  Rs.800                       

    B)  Rs.1000         

    C)         Rs.900           

    D)         Rs.600                       

    Correct Answer: A

    Solution :

    Let the cost of production of the table be Rs. x.                  Then, \[125%\]of \[115%\]of \[110%\]of \[x=1265~\] \[\Rightarrow \] \[\frac{125}{100}\times \frac{115}{100}\times \frac{110}{100}\times x=1265\] \[\Rightarrow \]  \[\frac{253}{160}x=1265\,\,\Rightarrow \,x=\left( \frac{1265\times 160}{253} \right)=Rs.800\]


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