2/9 boys b
7/9 girls g
b = (2/7) g or g = (7/2) b
g - 250 = b
(7/2) b - b = 250
(5/2) b = 250
5 b = 500
b = 100
At country concert, the ratio of the number of boys to the number of girls is 2:7. If there are 250 more girls than boys, how many boys were at the concert?
1 answer