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

  • question_answer
    If 879=8, 625=1 and 586=9, then 785=? 

    A) 6                                 

    B) 7             

    C) 8                                 

    D) 9           

    Correct Answer: A

    Solution :

    As, \[7+\left( 9-8 \right)=8,\] \[2+\left( 5-6 \right)=1\] and       \[8+\left( 6-5 \right)=9\] In the same way? \[?=8+\left( 5-7 \right)\] \[=\text{ }82=6\]


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