In the year 1786, in US Shay's rebellion was a rebellion among the farmers of Massachusetts and significant because as it is one of the major factor which led to the writing of new US constitution.
The distance between two cities X and Y is 270 km. First train starts from X at 7:00 a.m. and travels towards Y at 40 km/hr. Second train starts from Y at 8:30 a.m. and travels towards X at 30 km/hr. At what time (in a.m.) will both the trains meet?