Question

The Birdwatching Club has 30 members, 21 girls and 9 boys. What is the ratio of girls to boys in the Birdwatching Club?


A. 7 : 3
B. 1 : 2
C. 3 : 7

Answer 1

the ratio of x to y is x/y

Answer 2

more example
ration a to b would be `a/b` and ratio b to a would be `b/a` proportion/fraction
\[\rm ratio~of ~ dark~chocolate ~ \color{Red}{to}~~ white ~chocolate ~~~~dark ~chocolate \color{Red}{:} white ~chocolate ~~~\] is same as \[\large\rm dark ~Chocolates ~~~\color{Red}{to}~~white ~chocolate = \frac{ dark~chocolate }{ white ~chocolate }\]

Answer 3

use `:` for word `to`