There are 2113 people at a concert.there are 5 times as many girls as boys.there are 377 more adults than boys.find the number of girls at the concert.
x = number of girls then
1/5x = number of boys
377 + 1/5 x = adults
All of these added together = 2113
x + 1/5 x + 377 + 1/5 x = 2113
7/5 x = 1736
x=girls=1240 (boys = 248 adults = 625)