8
Q:
A) 54 sec | B) 36 sec |
C) 72 sec | D) 11 sec |
Answer: B) 36 sec
Explanation:
Explanation:
Time taken to meet the first time = length of track/relative speed
Given the length of the track is 600 m
The relative speed = 25 + 35 = 60 kmph = 60 x 5/18 m
Therefore Time = = 600/60 x (18/5) = 36 sec.