Railways R.R.C. (Ajmer) Solved Paper Held on 1st Shift 2-11-2014

  • question_answer Find the option to replace 2 to complete the pattern?
    1 4 ?
    4 2 5
    5 2 3
    49 64 169

    A) 3                                 

    B) 6

    C) 5                                 

    D) 4

    Correct Answer: C

    Solution :

    As.        \[{{(1+4+2)}^{2}}={{(7)}^{2}}\] \[=49\] And      \[{{(4+2+2)}^{2}}={{(8)}^{2}}\] \[=64\] Same as, \[{{(?+5+3)}^{2}}=169\] \[\Rightarrow \]   \[?=29.08-10.09\] \[\therefore \]      \[?=13-8\]                                 \[=5\]

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