Question

The ratio of grade 7's to grade 8's is 5:3. If there

are a total of 90 grade 8's, how many total
students are there in grade 7 and 8?

Answer 1

240 students

Explanation:

Grade 7 : Grade 8 = 5 : 3

Number of seventh grade students = 5x

Number of Eighth grade students = 3x

3x = 90

x = 90÷3

x = 30

Total students = 5x + 3x = 8x = 8 * 30 = 240