Answered

The ratio of the number of boys and girls in a class is 9:4. Find the number of girls if the total number of students in the class is 78.

Sagot :

9:4 in 78 is answered by first adding the two
9+4=13
now you divide the number of students by 13
78÷13=6
now just multiply each sides of the ratio by six to get the answer
9×6=54
4×6=24
so its 54:24