2
Q:
A) 10 sec | B) 48 sec |
C) 36 sec | D) 56 sec |
Answer: C) 36 sec
Explanation:
Explanation:
Given speed of jogger = 9 kmph
Speed of train = 45 kmph
As they are in same direction,
Relative speed = 45 - 9 = 36 kmph = 36x5/18 = 10 m/s
Distance = 240 + 120 = 360 mts
Time = distance/speed = 360/10 = 36 sec.