contestada

There are 180 sheep in a flock.For every 9 white sheep there is 1 black sheep.How many :
White sheep are there?
How many black sheep are there ?

Respuesta :

white sheep: 162                  black sheep: 18
Numbers are a ratio of 9: 1, total 10 parts
180/10 =18
18 x 9 =162    18 x 1 =18