There are 160 horses and 340 sheep on a certain farm. If 20% of the horses and 35% of the sheep are eight years old or older, what percent of the horses and sheep on the farm are under the age of eight? Pick one:
A) 15.6% B) 30.2% C) 55% D) 56% E) 69.8%
2 horses are eight years or older, thus 128 are younger.   119 sheeps are eight years or older, thus 221 are younger.   Total sheeps and horses younger than eight: 349   Total sheeps and horses 500.   349/500 is very close to 350/500 which is 70%. Considering the error chose E.   Answer 69.8%.
<result>E</result>
There are 160 horses and 340 sheep on a certain farm. If 20% of the horses and 35% of the sheep are eight years old or older, what percent of the horses and sheep on the farm are under the age of eight?