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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?
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Answer / guest
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.
| Is This Answer Correct ? | 92 Yes | 20 No |
Answer / rachit pant
In one hour , the minute hand will be 55 ticks ahead of hour
clock
(This is because the minute hand has travelled 60 ticks in
one hour , while the hour hand has travelled 5 ticks in that
time).
Both minute hand and hour hand will be together when minute
hand is 60 ticks ahead of hour hand.
In 60 minutes ->> 55 ticks ahead.
In ? minutes ->> 60 ticks ahead.
? = 60/55 * 60 = 65 5/11 = 65.454545 (ANS )
| Is This Answer Correct ? | 32 Yes | 9 No |
Answer / oran
On our broken watch, the Hour and Minute hands meet every 65 minutes, which in a 12 hour period is 715 minutes (65*11).
On standard analog clock, the second hand and the minute had will meet every 65.45454545 minutes based on the (12*60)/11 formula; which for a 12 hour period is 720 minutes (65.45454545 * 11 ~or using our previous formula~ 12*60).
720 - 715 = 5 minutes for 12 hour period
In a 12 hour period our broken watch gains 5 minutes and will not be the same again for a long time to come.
| Is This Answer Correct ? | 8 Yes | 10 No |
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