2. Solved Papers
  3. Railways

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

  • question_answer
    If four numbers are in the ratio 3 : 4 : 5 : 6 and their average is 22.5, which of the following is one of the numbers?

    A) 10                                

    B) 12

    C) 22.5                             

    D) 25

    Correct Answer: D

    Solution :

    Suppose numbers are 3x, 4x, 5x, and 6x. Then.   \[\frac{3x+4x+5x+6x}{4}=22.5\]                                                 \[18x=90\]                                                  \[x=5\] Hence, numbers are 15, 20, 25 and 30.


You need to login to perform this action.
You will be redirected in 3 sec spinner