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Railways R.R.C. (Gorakhpur) Solved Paper Held on 1st Shift 23-11-2014

  • question_answer
    A car moves at 30 kmph for 2 hours, 40 kmph for 3 hours and 50 kmph for 5 hours. What is the average speed?

    A) 38 kmph                       

    B) 45 kmph

    C) 43 kmph                       

    D) 40 kmph

    Correct Answer: C

    Solution :

    Average speed \[=\frac{30\times 2+40\times 3+50\times 5}{(2+3+5)}\] \[=\frac{430}{10}=43\,\,kmph\]


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