In an accurate clock, in a period of 2 hours 20 minutes (140 minutes), the minute hand will move over
In an accurate clock, in a period of 2 hours 20 minutes (140 minutes), the minute hand will move over
(a) 520° (b) 320° (c) 840° (d) 140°
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(c) The minute hand move over in 60 minutes = 360°
So, angle made by minute hand in a minute =360°/60 = 6°
So, in a period of 2 hours 20 minutes the minute hand will move over = 6 × 140° = 840°
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