Question

Reagan surveyed a number of her classmates about what time they usually go to bed. Of the fifteen classmates she asked, three said 9 p.m. What percent of the students is this?

Answer 1

20% of the students

Explanation:

Answer 2

20%

Explanation:

We can say that 3/15 students usually go to bed at 9 P.M. We can set up a proportion to solve this problem.

3/15=x/100

We cross multiply to find x

15x=300

Divide both sides by 15

x=20

So 20% of the classmates usually sleep at 9 P.M.