Question 865417
Let t = time taken



Let's call the first train Train A. Train A goes from P to Q. The other train will be train B. Train B goes from Q to P



Train A travels 25t kilometers while train B travels 30t kilometers both in the same timespan t. After t hours, they will have traveled 25t+30t = 55t km



This must add up to 110 km for them to both cover the entire 110 km distance and meet somewhere in between. So 55t = 110. Divide both sides by 2 to get t = 110/55 = 2



So it takes 2 hours til they meet up. So they meet up at 8+2 = 10 am