Exercise 12 (B) Question 2 - Selina Mathematic Class 6 – Idea of Speed, Distance & Time.
A train whose length is 150 m passes a telegraph pole in 10 sec. Find the speed of the train in km/h.
Selina concise maths solution,
Exercise 12 (B) Question 2, Selina Mathematic Class 6, Idea of Speed Distance and Time,
A train whose length is 150 m passes a telegraph pole in 10 sec, Find the speed of the train in km/h
Given
A train whose length is 150 m, passes a telegraph pole in 10 sec
So, distance =150 m
Time =10 sec
Hence,
Speed =150m/10sec
=15m/sec
=(15×60×60)/1000km/h
=(15×6×6)/10km/h
=3×3×6km/h
We get,
=54km/h
Hence, the speed of the train in kilometer per hour is 54 km/h