Question

There are 18 girls in a class.

If this is 40% of the class list, how many students are in the class?

Answer 1

45

Explanation:

18 ÷ 45 = 0.4 = 40%

Answer 2

45 students

Explanation:

40+40=80 40/2=20 80+20=100

18+18=36 18/2=9 36+9=45

horrible explaining but hope it helps :)