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9th Class Mathematics Geometry Question Bank Geometry

  • question_answer
    At 2.15 o'clock the hour and minute hands of clock form an angle of

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

    B) \[22\frac{1{}^\circ }{2}\]

    C) \[7\frac{1{}^\circ }{2}\]

    D) \[5{}^\circ \]

    Correct Answer: C

    Solution :

     Angle between hour and minute hands of a clock at \[2.15\]O'clock \[={{30}^{o}}-\frac{1}{4}({{30}^{o}})\] \[={{30}^{o}}-7\frac{1}{2}{{\,}^{o}}=22\frac{1}{2}{{\,}^{o}}\]


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