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

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Solution

Ans : 40 km/hr
Hint :
Let the speed in the upward journey be x km/hr. Then, the speed in the journey = (x + 5) km/hr.
$∴ \frac{360}{x} - \frac{360}{x + 5} = 1.$

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

Ans : 40 km/hrHint :Let the speed in the upward journey be x km/hr. Then, the speed in the journey = (x + 5) km/hr.∴360x−360x+5=1.

Ans : 40 km/hr
Hint :
Let the speed in the upward journey be x km/hr. Then, the speed in the journey = (x + 5) km/hr.
$∴ \frac{360}{x} - \frac{360}{x + 5} = 1.$