In a group of buffaloes and ducks, the number of legs is 24 more than twice the number of heads. How many buffaloes are there?
View answer & explanation Ans: 12
Correct Answer: 12
Let buffaloes = b and ducks = d. Heads = b + d, legs = 4b + 2d. Given 4b + 2d = 2(b + d) + 24, so 4b = 2b + 24 and b = 12.