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Question

# A 12 dial clock has its minute hand defective.Whenever it touches dial 12, it immediately falls down to 6 instead of running smoothly (the hour hand remains unaffected during that fall). It was set right at 12 '0' clock in the noon.A clock is set to show the correct time at 11 a.m. The clock gains 12 minutes in 12 hours what will be the true time when the watch indicates 1 p.m. on the 6th day ?

A
10 a.m.
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B
11 a.m.
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C
12 noon
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D
None of these
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Solution

## The correct option is B 11 a.m.The answer is option BThe clock gains 12mins in 12hrs⇒ It gains 1min/hrFrom 11am till 1pm on the 6th day, the number of hours elapsed on the clock = (2+5×24)=122hrsNumber of time elapsed on correct clock would be = (122×60)61=120hrsThis is nothing but 6 exact days∴ the correct time would be 11am on the 6th day.

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