Question

A train travelling at a uniform speed for 360 km would have taken 48 minutes less

Answer 1

Step-by-step explanation:

Let original speed of the train be x km/h.

Time taken at original speed = 360/x hours

Time taken at increased speed = 360/(x+5) hours

Now, 360/x - 360/(x+5) = 48/60

360[1/x - 1/(x+5)] = 4/5

x2 + 5x – 2250 = 0

x = 45 or –50

As speed cannot be negative

x = 45 km/h

Answer 2

Step-by-step explanation:

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