In a group of pigs and hens, the number of legs are 22 more than twice the number of heads. The number of pigs is
Choose the correct choice from the following answers
A) 5 B) 7 C) 10 D) 12 E) 11

Rationale: explanation : let the number of pigs be x and the number of hens be y . then , 4 x + 2 y = 2 ( x + y ) + 22 4 x + 2 y = 2 x + 2 y + 22 2 x = 22 x = 11 answer : e
Answer: E