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SSC Sample Paper Mock Test-12 SSC CGL Tear-II Paper-1

  • question_answer
    \[\angle POR\] and \[\angle QOR\] form a linear pair. If \[a-b=80{}^\circ ,\]then the value of a and b is, respectively

    A)  \[95{}^\circ ,\]\[85{}^\circ \]

    B)  \[108{}^\circ ,\]\[72{}^\circ \]

    C)  \[130{}^\circ ,\]\[50{}^\circ \]

    D)  \[105{}^\circ ,\]\[75{}^\circ \]

    Correct Answer: C

    Solution :

    Here, \[a+b=180{}^\circ \]and \[a-b=80{}^\circ \Rightarrow 2a=260{}^\circ \] \[\Rightarrow \]   \[a=130{}^\circ \] \[b=180{}^\circ -130{}^\circ =50{}^\circ \] So,       \[a=130{}^\circ ,\]\[b=50{}^\circ \]


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