00:02
In this problem, let us denote the boys and girls in room x as boys as b1, b2, and girls as g1, g2.
00:16
Similarly, in room y, the boy be represented as b3 and the girl be represented as since three girls, so g3, g3, g4 and g5.
00:30
Now let us look at the sample space in which, and for the experiment in which, so room is selected and then a person.
00:36
Sample space, say room selected is x, person is b1, x b2, x, g1, x, g2...