Exercise 12 (B) Question 1 - Selina Mathematic Class 6 – Idea of Speed, Distance & Time.

 

A train 180 m long is running at a speed of 90 km/h. How long will it take to pass a railway signal?

Given

A train 180 m long is running at a speed of 90 km/h

So, distance =180 m

Speed =90 km/h

Hence,

Time = Distance / Speed

=180m/90km/h

=180/(90×1000)

=1/500hours

We get,

=1/500×60×60sec

=36/5sec

We get,

=7.2sec

Hence, the train will take 7.2 sec to pass a railway signal

Exercise 12 (B) Question 1 - Selina Mathematic Class 6 – Idea of Speed, Distance & Time. Problem 1: A train 180 m long is running at a speed of 90 km/h. How long will it take to pass a railway signal? Selina concise maths solution Exercise 12 (B) Question 1, Selina Mathematic Class 6, Idea of Speed, Distance & Time, Problem 1: A train 180 m long is running at a speed of 90 km/h, How long will it take to pass a railway signal, Selina concise maths solution class 6 icse selina math chapter 12 speed distance and time, speed distance time class 6 concise mathematics, speed distance time class 6 selina, speed distance and time class 6, class 6 selina 12 a, class 6 selina chap 12, idea of speed, distance and time class 6, distance class 6, selina class 6, class 6th icse selina math solution, class 6 selina step by step explanation, speed = distance by time, class 6 icse selina math, class 6 concise chap 12,