a class has a total of 25 students. twice the number of girls is equal to 3 times the number of boys. gow many girls are in the class?

Answer 1

2g=3b

b+g=25

10b

15g

Answer 2

Let B = # of boys

G = # of girls Then B + G = 25

and 2G = 3B

Substituting,

B + (3/2)B = 25

or 2.5 B = 25

or B = 10 (Boys)

and G = 15 (Girls)