Question

Two trains 121 m and 99 m in length respectively are running in opposite
directions, one at the rate of 40 kmph and the other at the rate of 32 kmph. In
what time will they be completely clear of each other from the moment they
meet?​

Answer 1

Answer:

Two trains 121 m and 99 m in length respectively are running in opposite directions, one at the rate of 40 kmph and the other at the rate of 32 kmph. How long will they take to be completely clear of each other from the moment they meet? time taken in seconds = 3600*0.22/72 = 72*11/72 = 11seconds.