Question

joe has a farm with 99 animal, four times as many cows as horses, twice as many horses as pigs. how many cows, horses and pigs are there?

Answer 1

pigs--- x
horses --- 2x
cows--- 4(2x) or 8x

8x + 2x + x = 99
11x = 99
x = 9

9 pigs, 18 horses, and 72 cows