25
Q:
A) 14.4 sec | B) 15.5 sec |
C) 18.8 sec | D) 20.2 sec |
Answer: A) 14.4 sec
Explanation:
Explanation:
Let the length of the train be L metres
Speed of first train = m/hour
Speed of secxond train = m/hour
When running in opposite directions, relative speed = 200 L + 300 L m/hour
Distance to be covered = L + L = 2L metre
Time taken = sec
=14.4 sec