There are 300 girls
Explaination:
The ratio is 5 boys to 6 girls, and a total of 550 students attending. To find the answer you have to multiply both ratio numbers by the same amount to get a correct answer. (See equation below)
[tex](5 \times 50) + (6 \times 50) = 550[/tex]
And to find how many girls and boys simply solve each one (5×50=250 boys) and (6×50=300 girls)