21
Q:
A) 42 kmph | B) 72 kmph |
C) 36 kmph | D) 44 kmph |
Answer: C) 36 kmph
Explanation:
Explanation:
Given speed of the first train = 60 km/hr = 60 x 5/18 = 50/3 m/s
Let the speed of the second train = x m/s
Then, the difference in the speed is given by
=> x = 10 m/s
=> 10 x 18/5 = 36 km/hr