Two clocks are set correctly at 10 a.m. on Friday. The first clock gains 2 minutes per hour, which is twice as much as gain by the second. What time will the second clock register when the correct time is 2 p.m. the following Monday ?
The time from 10 a.m. Friday to 2 p.m. the following Monday is 76 hrs.
The first clock gains 2 min. per hour.
Therefore, Gain in 76 hours = 152 min. = 2 Hours 32 minutes
Time shown by first clock will be 4 : 32 pm.
Other clock gains 76 min. = one hour 16 min. (Since first clock is twice as much as gain by the second)
It will show 3 : 16 pm.
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