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SSC Quantitative Aptitude Number System and its Operations Question Bank Numbers and Their Principles (II)

  • question_answer
    The taxi charges in a city contain fixed charges and additional charge/km. The fixed charge is for a distance of upto 5 km and additional charge/km thereafter. The charge for a distance of 10 km is Rs. 350 and for 25 km is Rs. 800. The charge for a distance of 30 km is

    A) Rs. 800

    B) Rs. 750

    C) Rs. 900

    D) Rs. 950

    Correct Answer: C

    Solution :

    [c] Let the fixed charges = Rs. x and the additional charges \[=\text{Rs}\text{.}\,\,y/km\] According to the question, \[x+5y=350\]                            ...(i) \[x+20y=800\]                          ...(ii) On solving Eqs. (i) and (ii), we get \[x=200,\] \[y=30\] \[\therefore \] Charge for a distance of 30 km \[=x+25y=200+30\times 25=\text{Rs}\text{.}\,\,950\]


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