The distance between 2 cities A and B is 330km. A train starts from A at 8 a.m. and travels towards B at 60 km/hr. Another starts from B at 9 a.m. and travels towards A at 75 km/hr. At what time do they meet?
Choose the correct choice from the following
A) 9a.m. B) 10a.m. C) 10.30a.m. D) 11a.m. E) 1p.m.
Suppose they meet x hrs after 8 a.m.   Distance moved by first in x hrs + Distance moved by second in (x-1)hrs = 330   60x + 75 (x-1) = 330   x = 3   They meet at  8+3= 
<gadget id="calculator"> 8+3</gadget>
<output>11</output>
11 a.m.   Answer is 11a.m.
<result>D</result>
The distance between 2 cities A and B is 330km. A train starts from A at 8 a.m. and travels towards B at 60 km/hr. Another starts from B at 9 a.m. and travels towards A at 75 km/hr. At what time do they meet?