Question

Krishna has some hens and some cows. If the total number of animal
heads are 59 and the total number of feets are 190, how many cows Krishna have?​

Answer 1

suppose he has x cows

and y hens

a cow has 4 feets a hen has two

so 4x + 2y = 190__________(1)

and, x+ y = 59_____________(2)

doing,(1) x1 -(2)x2

4x + 2y = 190

2x+ 2y= 118

____-___-_______-________

2x. =72

x = 36

from equation (2)

36+ y= 59

or, y= 23