Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A train travels 360 km at a uniform speed.if speed has been 5 km/h more ,it would have taken 1 hour less for same journey.find the speed of the train.

rai yuva nenu class lo ela cheyyalo cheppanu kad
rai nadi best answer ani click cheyyi


The Brainliest Answer!

This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Let the speed of train = x km/h
time taken = 360/x hour
if speed has been 5 km/h more,
speed = x+5
time taken will be = 360/(x+5) hour

According to the question,

 \frac{360}{x} -\frac{360}{x+5}= 1 \\  \\ \frac{360*5+360x-360x}{x(x+5)} =1 \\  \\ 1800=x(x+5) \\  \\  x^{2} +5x-1800=0
Solving we get x= 40 km/h
2 4 2
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts