The correct option is A 22
Let no.of hens =x
cows =y
No.of hen heads =x
No of cow heads =y
βx+y=48β(1)
No. of hen feet =2x
No. of cow feet =4y
2x+4y =140
x+2y =70 -(2)
x+y=48 -(1)
x+2y=70 -(2)
(2) -(1)
y =70 -48
y=22
x+y=48
βx+22=48
βx=26
β No.of hens =26
No. of cows =22
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Let no.of hens =x
cows =y
No.of hen heads =x
No of cow heads =y
βx+y=48β(1)
No. of hen feet =2x
No. of cow feet =4y
2x+4y =140
x+2y =70 -(2)
x+y=48 -(1)
x+2y=70 -(2)
(2) -(1)
y =70 -48
y=22
x+y=48
βx+22=48
βx=26
β No.of hens =26
No. of cows =22