Comprehension Passage
Directions: Study the graph to answer the questions that below:
Following line graph shows the length of train and length of platform crossed by a particular train.
Time taken by train C to cross-platform is 30 seconds. A man walking on the same platform with speed 1m/s. Find the relative speed of the train to cross the walking man in the opposite direction on the same platform.
1
7 m/s
2
5 m/s
3
6 m/s
4
9 m/s
5
10 m/s