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Railways Sample Paper RRB (Group D) Sample Test Paper-14

  • question_answer
    If 21 is added to a number, it becomes 7 less than thrice of the number. Then the number is

    A)  14       

    B)  16

    C)  18                   

    D)  19

    Correct Answer: A

    Solution :

    [a] If the number be x, then \[x+21=3x-\,7\] \[\Rightarrow 3x-\,x=21+7\] \[\Rightarrow 2x=28\] \[\Rightarrow x=14\]


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