Question

A train trevels a distance of 360km at a uniform speed.If the speed of the train is 5km more per hour,then it could have taken one hour less for the same journey,find the speed of the train?

Answer 1

Answer:

Step-by-step explanation:let the speed be x km/h

D=360km

T1=360/x

Speed2=(x+5)km/h

T2=360/x+5

Acc. To question

T1-t2=1

360/x-360/x+5=1

360(x+5-x)/x^2+5x=1

360×5=x^2+5x

X^2+5x-1800=0

X^2+45x-40x-1800=0

X(x+45)-40(x+45)=0

X=40km/h

Answer 2

Answer:

Step-by-step explanation: