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7th Class Mental Ability Calendar Question Bank Time Clock and Calendar

  • question_answer
    If a clock starts moving at noon, by 10 minutes past 5 the hour hand of the clock has moved by how many degree?

    A) \[145{}^\circ \]        

    B) \[\,150{}^\circ \]      

    C) \[155{}^\circ \]   

    D) \[160{}^\circ \]

    E) None of these

    Correct Answer: C

    Solution :

    Explanation Option [c] is correct. Angle traced by hour hand in \[12 hrs = 360{}^\circ \]. Angle traced by hour hand in 5 hrs 10 min. i.e., in \[\frac{31}{6}hrs={{\left( \frac{360}{12}\times \frac{31}{6} \right)}^{{}^\circ }}=155{}^\circ .\]                   


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