Wipro
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Numerical Ability
Clocks and Calendars
The minute hand of a clock overtakes the hours hand at intervals of 65 min of the correct time. How much of the day does the clock gain or lose?
Read Solution (Total 1)
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- Gains 10 minutes each day.
In 12 hours, there will be 11 overtakings.
That means 11 * 65 = 11 * 60 + 11 * 5 = 11 hours and 55 minutes
Thus, when the clock measures an interval of 12 hours, it actually is an interval of 11 hours and 55 minutes.
Thus the clock gains abt 5 minutes every 12 hours, or 10 minutes every day.
In a correct clock, The minute hand should overtake the hour hand in abt 65 minutes and 27.16 seconds. - 12 years agoHelpfull: Yes(5) No(10)
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