The total time gained by a clock from 12.00 noon on Monday to 2pm on the next Monday = 6 min 48 sec. That means in 170 hours, the clock gains 6 min 48 sec. If it gains 2 minutes starting from 12.00 noon Monday it shows correct time. To gain 2 minutes the time taken by a clock = 50 hours. ∴ 50 hours from Monday 12’noon = 2 pm on Wednesday.