Question

A train covers a distance of 12 km in 10 min. If it takes 6 sec to pass a telegraph post, the length of the train is

Answer 1

your answer is 120 metre is the length of the train

Answer 2

According to the determination in the question that,

A train covers a distance of 12 km in 10 min. If it takes 6 sec to pass a telegraph post, the length of the train is,

It crosses the telegraph post in 6 seconds or it travels it's own distance in the 6 seconds, because a telegraph post is a point not a distance gap.

So,the train travels 12Km or 12000m is 10 mins or in 600 seconds.

So in 6seconds it will travel 120 m.

So the length of the train is 120 m.