Question

girls : boys = 1:1
girls who sing : girls who do not sing = 1:2
8 girls sing in the show.
How many students are in the show altogether?

Answer 1

Answer:

48 students

Step-by-step explanation:

Girls who sing : girls who don't sing = 1 : 2

Let total number of girl be x

Part of girls who sing = (1/3)x

Part of girls who sing = 8

                              $\frac{1}{3}x=8\\\\x =8*\frac{3}{1}$

                             x = 24

Number of girls = 24

Girls : boys = 1 : 1

Number of boys = number of girls

Total students in the show = 24 + 24 = 48