Question

Determine the number of girls in a math class with 91 students, if there are 180 girls for every 184 boys?

Explain how you got answer

Answer 1

45

Explanation:

180 + 184 = 364

If there are 180 girls for every 184 boys, then there are 180 girls for every 364 students.

The fraction of girls is 180/364 = 45/91

If a class has 91 students, and the fraction of girls is 45/91, then there are

45/91 * 91 = 45 girls