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Question

Select the correct alternative from the given choices.

The minute-hand of a clock overtakes the hour-hand at intervals of 62 minutes of a correct time. How much in a day does the clock gain or losse?

A
8080341minutes
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B
85090311minutes
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C
8070341minutes
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D
8060341minutes
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Solution

The correct option is A 8080341minutes
In a correct clock, the hands of a clock coincide every 65511 minutes. But in this case both the hands are together again after 62 minutes, hence the clock gains time.
Gain in 62minutes=(6551162)=3511min gain.
Gain in 24 hours =38/11×60×24/62
=19×60×2411×31=8080341
So the clock gains 8080341 minutes in 24 hours.

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