If A and B start moving in opposite direction at 07:10 am. After meeting they took 80 min and 20 min to reach at the starting points of each other. Find at what time they meet each other.

9:10 am 8:30 am 8:00 am 7:50 am

7:50 am

Meeting time = \(\sqrt {T_1\;×\;T_2}\)                    = \(\sqrt {80\;×\;20}\)                    = 40 min Therefore, They met each other at = 7:10 + 40 min = 7 : 50 am