Answer:
<u>64 chicken</u>
Step-by-step explanation:
160 x 0.19 = 30 cows if you (round)
160 x 0.28 = 45 goats if you (round)
160 x 0.13 = 21 horses if you (round)
19+28+13 = 60 percent out of 100, subtract 100%-60%= 40%
160 x 0.40 = 64 chickens.
To check you can do..
30+45+21= 96
Then you add 64 chicken to rest of the animals.
64 + 96 and you get all the animals.
So 64 is the answer.