Question

In a group of 84 students surveyed, the ratio of student preference is seven oatmeal eaters to four granola eaters to three toasted O eaters.

Of the 84 students, how many prefer oatmeal

Answer 1

oat : granola : toasted O = 7 : 4 : 3 = 7x : 4x : 3x

7s+4x+3x = 84
14x = 84
x = 6

oatmeal eaters = 7x = 42