Li Dabo's family raises 180 chickens and ducks, and the number of ducks is one fifth of that of chickens. How many chickens and ducks does Li Dabo raise

Li Dabo's family raises 180 chickens and ducks, and the number of ducks is one fifth of that of chickens. How many chickens and ducks does Li Dabo raise

Duck 1:6 = x: 180
x=30
Chicken 5:6 = Y: 180
y=150