Question

    Anshul lives on 19th floor and Keshav lives on 46th

    floor. Anshul goes up at a rate of 24 floors per minute and Keshav comes down at a rate of 30 floors per minute. At which floor they will meet? 
    A 38th Correct Answer Incorrect Answer
    B 26th Correct Answer Incorrect Answer
    C 32nd Correct Answer Incorrect Answer
    D 31st Correct Answer Incorrect Answer

    Solution

    Total floors between Anshul and Keshav = 46 – 19 = 27 floors Relative speed = 24 + 30 = 54 floor/min Time taken by them to meet = total floors/relative speed = 27/54 = 1/2 min Anshul travels in 1/2 min = 1/2 x 24 = 12 floors Floor at which Anshul and Keshav will meet = 19 + 12 = 31st floor

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