We can use the formula:

distance = speed x time

Given that the distance is the same and the speed is increased, we can use the formula to find the time it will take to cover the distance at the increased speed.

time = distance / speed

where distance is the distance covered by the man, and speed is the increased speed of the train.

We know that the man traveled a distance of 44.8km per hour for 4hrs 12min. To convert the time to hours we can do (4 + 12/60) = 4.2hrs

distance = 44.8 x 4.2 = 188.56km

Now, we know the distance and the new speed of the train is 57.6km per hour.

time = distance / speed = 188.56 / 57.6 = 3.27hrs

So, it will take 3.27hrs to cover the same distance if the speed of the train is increased to 57.6km per hour.

Step-by-step explanation:

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