Railways R.R.C. (Gorakhpur) Solved Paper Held on 2nd Shift 30-11-2014

  • question_answer
    What is the distance between two points whose coordinates are (5, 7) and (11, 15)?

    A) 6                                 

    B) 8

    C) 10                                

    D) 12

    Correct Answer: C

    Solution :

    Distance between points (5,7) and (11, 15) \[\sqrt{{{(11-5)}^{2}}+{{(15-7)}^{2}}}\] \[\sqrt{{{6}^{2}}+{{8}^{2}}}\]  \[\sqrt{36+64}\] \[\sqrt{100}\] \[=10\]


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