CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2006

  • question_answer
    If a, b and \[c\in N\], then which one of the following is not true?

    A)  \[a\left| \text{ }b\text{ }and\text{ }a \right|c\Rightarrow a|3b+2c\]

    B)  \[a\left| \text{ }b\text{ }and\text{ }b \right|c\Rightarrow a|c\]

    C)  \[a\left| \text{(}b+b)\Rightarrow a \right|b\Rightarrow and\,a|c\]

    D)  \[a\left| \text{(}b\,\,and\,a \right|c\Rightarrow \,a\,|b+c\]

    Correct Answer: C

    Solution :

    By taking option (c)\[a|b(+c)\Rightarrow /a|b\] and \[a|c\]e.g.,      \[6|18\Rightarrow /6|1\]and \[6|17\]


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