Two trains 121m and 99m in length, respectively, are running in opposite directions, one at a speed of 40 km/h and the other at a speed of 32 km/h. In what time will they be completely clear of each other from the moment they meet?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 11sec
As we know
Time = Distance/ speed
According to the question
Time they will be completely clear of each other from the moment they meet = [(121 + 99)/{(40+32)*5/18}]
= 220/20 = 11 sec