SOLUTION: At Ridgemont High School, the ration of boys to girls is 3:4. There are 1200 boys in the school. How many girls? Show all work.

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: At Ridgemont High School, the ration of boys to girls is 3:4. There are 1200 boys in the school. How many girls? Show all work.      Log On


   

Question 580936: At Ridgemont High School, the ration of boys to girls is 3:4. There are 1200 boys in the school. How many girls? Show all work.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
At Ridgemont High School, the ratio of boys to girls is 3:4.
;
Let g = no. of girls
:
1200%2Fg = 3%2F4
Cross multiply
3g = 1200 * 4
3g = 4800
g = 4800/3
g = 1600 girls