# The minute hand in a clock moves by _______ minutes in an hour -

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The minute hand in a clock moves by _______ minutes in an hour -
1. 55
2. 10
3. 35
4. 25

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Correct Answer - Option 1 : 55

The logic followed here is:\

• In one minute, minute hand moves = 360/ 60 = 6º
• In one hour, hour hand moves = 360/ 12 = 30º
• In one minute hour hand moves = 30/60 = 1/2º
• So, the relative distance between both the hands in one minute = 6º - 1/2º =  $5 {1 \over 2}$º
• In other words, in one minute, the minute hand gains  $5 {1 \over 2}$º  more than hour hand.
• In one hour the gain will be  =  $5 {1 \over 2}$º × 60 = 330º
• In other words, the minute hand will gain [ 330/6 = 55] 55 minutes to the hour hand. or the minute hand moves by 55 minutes in an hour.

Hence, '55' is the correct answer.