A train travelling at a uniform speed for 360 km would have takan 48 minutes less to travel the same distence if its speed were 5 km/hour mor find the speed of train
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Let speed be x
Increase in speed is 360/x+5
According to the question
369/x -360/x+5 =48/60
360(1/x - 1/x+5) = 4/5
1800/x2+5x =4/5
Solving we get
X2+50x-45x-2250 =0
There fore x = -50 or 45
Since we don't consider negative x = 45
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