The distance between two places A and B is 570 kms. A train starts from A at 50 kmph at 6 am and another starts from B at 80 kmph at 7 am towards each other. At what time will they meet?
Explanation:
Let the two trains meet at a distance x km from place A
Time required by the train starting from A to cover x is x/50 hr
Time taken by the other train starting from B to cover (570 - x) km = (570-x)/80
But the first train has started 1 hr early. So, it has travelled 50 km in this 1 hr.
Therefore, x/50 - 1= (570-x)/80
On Solving, x = 250
So, they will meet at a distance of 250 km from place A
So the time at which they will meet will be (250/50) = 5 hrs (after 6 am)
They will meet at 11 am.
Hence, option 3 is the correct answer.
![]()
By: Amit Kumar