Solution:Suppose the number of hens = hNumber of cows = c
According to the question,
h+c=48...(i)
2h+4c=140...(ii)
From equations (i) and (ii):
c=22
h=48−22=26
or
Let number of hens = x
Number of cows = (48 - x)
According to the question,

Number of Hens = 26