Question

A train travels 360 km at a uniform speed. If the speed had been 5 km/h less, it would have taken 1 hour more for the same journey. Find the speed of the train.

Please answer the question fast

Answer 1

45 km/h

Explanation:

Speed = x, distance= 360 km

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• 360/x= 360/(x-5)- 1
• 360/(x-5)-360/x= 1
• 360x-360(x-5)=x(x-5)
• x^2-5x=360*5
• x^2-5x- 1800=0
• x=45 km/h