Question

During a total journey of 504 km, a train slowed down due to bad
weather conditions reducing its speed by 7kmph. As a result it took
one hour more to complete the journey. What is the normal duration
for the journey?

Answer 1

Answer:

Sorry I can not answer.

Answer 2

Step-by-step explanation:

Let the speed of the train be x km/h

and time taken to cover the distance of 504 km be y hours.

According to the question

(x-7)(y+1)=xy

=> xy+x-7y-7=xy

=> x-7y-7=0

=> (504/y)-7y-7=0

=> 504-7y²-7y=0

=> 7y²+7y-504=0

=> y²+y-72=0

=>( y+9)(y-8)=0

=> y-8=0=>y=8 (y=-9 is not possible)

So the normal duration for the journey is 8 hours.

hope you got it.