If the ratio of boys to girls in the classroom is 3 to 5, if there are 25 girls in the class how many boys are there?
4. If the ratio of boys to girls in the classroom is 3 to 5, if there are 25 girls in the class how many boys are there?
A. 42
B. 3
C. 15
D. 21
Show your work
25 girls : 5 = x boys : 3
25 x 3 = 75
75 / 5 = 15
Answer: C. 15