A man counted his animals, 80 heads and 230 legs (ducks and goats). how many goats are there?  Answers:
A) 30
B) 40
C) 50
D) 60
E) 70
let no of ducks=d and no of goat=g   d+g=80(heads)----------&gt; eq 1   each duck has 2 legs and goat has 4 legs   2d+4g=230 and divide 2d+4g=230 by 2 we get d+2g=115 -----------&gt; eq2   subtract eq1 from eq2   we get no of goats=30   30NSWER:30
<result>A</result>
A man counted his animals, 80 heads and 230 legs (ducks and goats). how many goats are there?