Question

(d) farm house shelters 16 animals. some of them are chickens and the others are cows. altogether these animals have 60 legs. identify how many chickens and how many cows are in the farmhouse?

Answer 1

total animals = 16

let number of chickens be x

and no of cows be y

therefore

x + y = 16
x = 16-y

now

no of legs of 1 chicken = 2

no of legs of x chicken = 2x

no of legs of 1 cow = 4

no of legs of y cow = 4y

ATQ

2x + 4y = 60

x + 2y = 30

16 - y + 2y = 30

y = 30 - 16

y = 14

now

x = 16 - y = 16 - 14 = 2

there are 14 cows and 2 chickens

Answer 2

I hope this answer is right