arithmetic - two stations a and b are 110 km apart on a straight line one train starts from a at 7 am and travels towards b at 20 kmph another train starts from b at 8 am and travels towards a at a speed of 25 kmph at what time will they meet - skillgun

Distance covered by A in x hours = 20 x km
Distance covered by B in (x - 1) hours = 25 (x - 1) km
20x + 25 (x - I) = 110
45x = 135
x = 3. So, they meet at 10 a.m