first have to identify the total ratio of the people going for the trip,and by that I mean you have to add 1,2 and 3.1+2+3=6
6=to the total ratio of people going for the trip.
men=1/6
women=2/6
children=3/6
6/6=150 people
1/6=?
1/6*150*6/6=25men.
6/6=150
2/6=?
2/6*150*6/6=50women.
6/6=150
3/6=?
3/6*150*6/6=75children