Question

a train travel 360km at a uniform speed.if the speed had been 5km/h more it would be taken 1 hour less for the same journey .find the speed of the train​

Answer 1

speed of train= xkm/hr

case 1:time taken =360x (1)

case 2 : speed of train =(x+5)km/hr

time=360x+5 (2)

acc to question

360x+5=360x−1

360x=360x+1800−x2−5x

x2+5x+1800=0

x2+45x−40x−1800=0

x(x−40)+45(x−40)=0

(x−40)(x+45)=0

x=−45&40

speed cant be negative so, sped of train is 40km/hr

Answer 2

Answer:

answer is in attachment

Step-by-step explanation:

hope it helps