# Places A and B are 80 km a part from each other on a highway. One car starts from and another from B at the same time.If they move in the same direction,they meet in 8 hours and if they move in opposite directions they meet in 1 hour and 20 minutes. Find the speeds of the car.

1
by dweejareddy

2014-10-11T04:48:09+05:30

### 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.
See diagrams.

When A and B travel in the same direction, distance traveled by B is the distance traveled by A + 80km.

VA * 8 hours + 80 km = VB * 8 hours
VB - VA = 80 km / 8 hours = 10 kmph   equation 1

When A and B travel towards each other, the distance traveled by both is 80 km.

VA * 80 minutes + VB * 80 minutes = 80 km

VA+ VB = 80 km / (80/60) hours = 60 km ph   equation 2

Add both equations to get,

2 VB = 70 kmph          VB = 35 kmph
VA = VB - 10 = 25 kmph