maths sets
posted by Emilia on .
All the people in a class of 35 play at least one of the games volleball,netball and hockey.10 play volleball only,5 play netball only and 3 play hockey only.if 2 play many of all 3 gamez and the equal number play 2 games.how many altogether play volleball

Adding up all the players named, we have 10+5+3+2 = 20 players. That leaves 15 people divided equally among the twogame areas. So, 5 play volleyball and netball and 5 play volleyball and hockey.
So, 10+5+5+2=22 play volleyball.
Just draw a Venn diagram and fill in the named regions.