A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:

A. 22
B. 23
C. 24
D. 26

• let hens be x and cows be y
  now,
  feet: x*2+y*4=140
  heads: x*1+y*1=48
  
  implies, 2x+4y=140 and x+y=48
  solving these two equations, we get x=26 and y=22
  Therefore, hens are 26.
• 8 years agoHelpfull: Yes(5) No(0)
• 4 leg animals= ( legs/2-heads)=140/2-48=70-48=22
  2 leg animals=( 2*head- legs/2)=48*2-140/2=88
• 8 years agoHelpfull: Yes(0) No(1)