Question

the ratio of number of girls number of boys in a class is 6: 7 if there are 21 boys in the class the number of girl is​

Answer 1

Answer:

18 girls

Step-by-step explanation:

Let number of girls be x

6/7=21/x

x= 21.6/7

126/7=x

18=x

Answer 2

Step-by-step explanation:

7x = 21

x = 3

number of girls = 6x = 6(3) = 18