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Time is taken by the Train to reach the destination at a speed of 55k/hr. = 755/55 = 13.72 hr.
If ignore the stoppage and delay time, then the total time taken = (13.72x 60)-(23x2)-30 min by Train to cover the distance = (823.63 -46-30) min
= 747.63 min or 12.46 hr.
New Average speed of the train = 755km ./12.46 hr. = 60.59km / hr
Percentage more than with delay and stoppage= ( 60.59-55)/55 = 0.1016 x 100 = 10.16%
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