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  1. If 5500 copies are published and the transportation cost on them amounts to Rs. 82500, then what should be the selling price of the book so that the publisher can earn a profit of 25%?
    2. A.

    Rs. 187.50
    B.

    Rs. 187.50
    C.

    Rs. 175
    D.

    Rs. 180

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    Answer : Option A

    Explanation :

    For the publisher to earn a profit of 25%, S.P. = 125% of C.P.

    Also Transportation Cost = 10% of C.P.

    Let the S.P. of 5500 books be Rs. x.

    Then, 10 : 125 = 82500 : x     =>     x = Rs.  \([\frac { 125 *82500 } { 10 } ]\) = Rs. 1031250

    Therefore S.P. of one book = Rs [ \(\frac { 1031250 } { 5500 }\)] = Rs. 187.50

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