A train travelling at a speed of 54km/hr crosses a lamp in 20 seconds what is the length of the train ???
Here is the link given below for the answer similar to your query :
Kindly refer the solution of part (2) in the given link :
https://www.meritnation.com/ask-answer/question/crosses-a-bridge-in-13-seconds-find-the-length-of-the/direct-and-inverse-proportions/5063047
Kindly refer the solution of part (2) in the given link :
https://www.meritnation.com/ask-answer/question/crosses-a-bridge-in-13-seconds-find-the-length-of-the/direct-and-inverse-proportions/5063047