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SSC Sample Paper Mock Test-3 SSC CGL Tear-II Paper-1

  • question_answer
    The angles of hexagon are \[x{}^\circ ,\]\[(x-5){}^\circ ,\]\[(x-5){}^\circ ,\]\[(2x-5){}^\circ \]and \[(2x+20){}^\circ ,\]then the value of x is

    A)  \[90{}^\circ \]                         

    B)  \[80{}^\circ \]

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

    D)  \[60{}^\circ \]

    Correct Answer: B

    Solution :

    Sum of interior angles of a hexagon are \[720{}^\circ \] \[\therefore \]\[x{}^\circ +(x-5){}^\circ +(x-5){}^\circ +(2x-5){}^\circ +(2x+20){}^\circ \]\[=720{}^\circ \] \[9x=720{}^\circ \] \[x=80{}^\circ \]


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