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Etrain travel 360 km at uniform …

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Etrain travel 360 km at uniform speed if the speed had been 5 km per hour it would have time taken 1 hour less than find the speed of train

    • Posted by Ram Yadav 11 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Pratham Maurya 11 months ago

    Given distance=360 km. Let the speed of the train be x km/hr. Speed when increased by 5 km/hr =(x+5) km/hr 360x−360(x+5)=1 [360x+1800−360x]x(x+5)=1 x2+5x−1800=0 x2+45x−40x−1800=0 x(x+45)−40(x+45)=0 (x−40)(x+45)=0 x=40,−45 The speed of the train is 40 km/hr.

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