0

Guest

Courses New

Two trains are running in opposite directions with same speed. If the length of each train is 135 m and they cross each other in 18 sec. Find the speed of each train.

Two trains are running in opposite directions with same speed. If the length of each train is 135 m and they cross each other in 18 sec. Find the speed of each train.

Grade:9

1 Answers

Arun
25750 Points
5 years ago
Distance covered = 135 + 135 = 270 m

Time = 18 s

Let the speed of each train = v. Then relative speed = v + v = 2v

2v = distance/time = 270/18 = 15 m/s

Speed of each train = v = 15/2 = 7.5 m/s 

= 7.5 × 36/10 km/hr = 27 km/hr
 
 
Regards
Arun (askIITians forum expert)

Think You Can Provide A Better Answer ?

Other Related Questions on 10 grade maths

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More