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  3. WB JEE Medical

WB JEE Medical WB JEE Medical Solved Paper-2008

  • question_answer
    The binary number 10111 is equivalent to the decimal number

    A)  19                                         

    B)  31

    C)  23                                         

    D)  22

    Correct Answer: C

    Solution :

                     Hence, \[{{(10111)}_{B}}=1\times {{2}^{4}}+0\times {{2}^{3}}+1\times {{2}^{2}}\] \[+1\times {{2}^{1}}+1\times {{2}^{o}}\] \[=16+0+4+2+1=23.\]


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