Answer:
36 girls
Explanation:
Find the number of students in all:
To do this, add the number of boys and girls in the ratio.
Boys : Girls
3 : 4
3 + 4 = 7
Therefore, there are 7 children in all.
Find the number ratio of boys to girls if there were 84 children in total:
To do this, divide 84 and 7.
84/7 = 12
Therefore, we need to multiply both sides of the ratio by 12.
Find the new ratio:
3 : 4
Girls: 3 x 12 = 36
Boys: 4 x 12 = 48
Girls : Boys
36 : 48
Check:
To do this, add the number of girls and boys to see if the total number of students is 84.
38 + 48 = 84
We're correct :)
Therefore, there would be 36 girls if 84 students went on the outing.