A farm has chickens, cows and sheep. There are six times the number of chickens and cows than sheep. If there are more cows than chickens or sheep, and together, cows and chickens have a total of 100 feet and heads, how many sheep live at the farm?
Pick one:
A) 5 B) 8 C) 10 D) 4 E) 17
Chicken - ch   Cows - C   Sheep -S   ch+C=6S   C&gt; ch and c&gt;s   Each cow has 4 legs and 1 head   Each chicken has 2 legs and 1 head   So 5c+3ch=100 (sum of legs and head)   There are 2 possible solutions to this equation   c=11 and ch=9 or   c=14 and ch=10   Since from first equation where ch+c=6s   The sum of ch and c should be divisbile by 6. 20 is not so the only possible solution is c=14 and ch=10. So s=4   Answer : 4
<result>D</result>
A farm has chickens, cows and sheep. There are six times the number of chickens and cows than sheep. If there are more cows than chickens or sheep, and together, cows and chickens have a total of 100 feet and heads, how many sheep live at the farm?