The minute and the hour hand of a watch meet every 65 minutes.
How much does the watch lose or gain time and by how much?
The minute and the hour hand meet 11 times in 12 hours in normal watch i.e. they meet after every
= (12 * 60) / 11 minutes
= 65.45 minutes
= 65 minutes 27.16 seconds
But in our case they meet after every 65 minutes means the watch is
gaining 27.16 seconds.
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