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Railways R.R.C. (Chennai) Solved Paper Held on 17-11-2013

  • question_answer
    Find the value of \[2ab+c,\]when a=1, b=2 and \[c=-\text{ }1\]

    A) 0                                 

    B) \[-1\]

    C) 2                                 

    D) 3

    Correct Answer: B

    Solution :

    Given,    a=1, b=2 and \[c=-1\] Then, \[2a-b+c=2~\times 12+\left( -1 \right)\] \[=22-1\] \[=-1\]


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