Question

A clock which uniformly gains 5 min per hour is set right at 11 p.m. what is the actual time when the clock is showing 12 noon the next day ?

Answer 1

let's take the next day as monday that means the clock is set at 11 p.m. (sunday)
then what is the time when clock is showing 12 noon next day.

clock will take 12 hours to complete 1 rotation if it moves 5 min per hour. from 11am sunday to 12 noon monday there are 13 hours. so we will multiply 12 and 13=156 hours
the clock will reach 12 noon next day (5min per hour) in 156 hours.
convert 156 hours into days=156÷24=6.5
that is sunday plus 6 days and 12 hours (0.5 of a day= 12 hours )=saturday 12 noon is the time 12:00 of Saturday.

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