Question

There are 396 students who are enrolled in an introductory biology course. If there are five boys to every four girls, how many boys are in the course?

Answer 1

220 boys

Explanation:

boys:girls

5:4

396 total

(5x44)+(4x44)=396

220+176=396

220 boys

Answer 2

There are 220 boys in the course.

Explanation:

If we group the five boys and four girls together, there would be 44 (396/9) groups of nine people. Since there are five boys in every group, you would do 44*5 which is 220.