A man has some hens and cows. If the number of heads be 44 and the number of feet equals 140, then the number of hens will be: Choose the correct choice:
A) 22 B) 23 C) 18 D) 26 E) 28
let hens be x and cows be y   now,   feet: x*2+y*4=140   heads: x*1+y*1=44   implies, 2x+4y=140 and x+y=44   solving these two equations, we get x=18 and y=26   Therefore, hens are 26.   ANSWER:18
<result>C</result>
A man has some hens and cows. If the number of heads be 44 and the number of feet equals 140, then the number of hens will be: