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  3. 8th Class
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8th Class Mathematics Sample Paper Mathematics Sample Paper-3

  • question_answer
    In the following figure if \[\angle BoC=7x{}^\circ +20{}^\circ \]and \[LCOA=3x{}^\circ ,\]then the value of x for which AOB becomes a straight line is:

    A) \[14{}^\circ \]              

    B) \[16{}^\circ \]

    C) \[21{}^\circ \]              

    D) \[30{}^\circ \]

    E) None of these

    Correct Answer: B

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