Two stations P and Q are 110 km apart on a straight track. One train starts from P at 7 a.m. and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards P at a speed of 25 kmph. At what time will they meet?	Pick:	A) 10 am	B) 12 am	C) 10.30 am	D) 12.30 am	E) 11 am
10 amssume both trains meet after x hours after 7 am   Distance covered by train starting from P in x hours = 20x km   Distance covered by train starting from Q in (x-1) hours = 25(x-1)   Total distance = 110   =&gt; 20x + 25(x-1) = 110   =&gt; 45x = 135   =&gt; x= 3   Means, they meet after 3 hours after 7 am, ie, they meet at 10 am   10 amnswer is 10 am.
<result>A</result>
Two stations P and Q are 110 km apart on a straight track. One train starts from P at 7 a.m. and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards P at a speed of 25 kmph. At what time will they meet?