Question

two trains are separated by 100 km are moving towards each other with same speed of 50km/ph. after how much time will they meet

Answer 1

they will meet after 1 hour.
Let the time be x.
Speed is 50 km/ph
so let distance = speed ×time=50x
but 50x+50x=100(from question)
100x=100
x=1 hour