Question

a physical education class has three times as many girls as boys during a class basketball game the girls averaged 18 points each and the class as a whole average of 17 points per person how many points does each boy score on an average

Answer 1

Let x be the number of boys, then,

(3*x*18+x*y)/(3x+x)=17

(54+y)/4=17

y=14 points each boy.