Subject

    Quantitative Aptitude

    Topic

    Clock

    Find the angle between the hour hand and the minute hand of a clock when the time is 3.25

    ক)
    47.5 degrees
    খ)
    57.5 degrees
    গ)
    45.5 degrees
    ঘ)
    55.5 degrees

    Explanation

    At 3 O'clock, Minute hand is at 12 while the Hour hand is at 3. Again the minute hand has to sweep through ( 30 x 5 ) ie 150° for reaching the figure 5 to show 25 mins. Simultaneously the Hour hand will also rotate for 25 mins. Thus starting from the mark, 3 the hour hand will cover an angle = (25 x 30) / 60 = 12.5° Hence, Angle between Hour and the Minute hand = ( 60 - 12.5 ) = 47.5°

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