A train A leaves Mysore at 6 a.m. and reaches Bangalore at 10 a.m. Another train leaves B Bangalore at 8 a.m. and reaches Mysore at 11.30 a.m. At what time do the two trains cross each other ?	Choose the correct choice from the following answers:
A) 8.30 a.m.  B) 8.45 a.m.  C) 8.56 a.m.  D) 9 a.m.  E) None of these
Explanation :   Solution: Let the distance between mysore and bangalore be x km and let the trains meet y hours after 8 a.m.   Clearly, A covers x km in 4 hours and B covers x km in 4.5 hrs = (7/2) hrs   .'. Speed of A = x/4 kmph, speed of B = 2x/7 kmph.   Distance covered by A in (y+2) hrs + distance covered by B in y hrs = x.   .'. x/4(y+2) + 2x/7 * y = x   =&gt; (y+2)/4 + 2y/7 = 1   =&gt; y = 14/15 hrs =14*60/15= 
<gadget id="calculator">14*60/15</gadget>
<output>56</output>
56 min.   Hence, the trains meet at 8.56 a.m.   Answer : 8.56 a.m.
<result>C</result>
A train A leaves Mysore at 6 a.m. and reaches Bangalore at 10 a.m. Another train leaves B Bangalore at 8 a.m. and reaches Mysore at 11.30 a.m. At what time do the two trains cross each other ?