In a group of ducks and cows, the total number of legs are 22 more than twice the no. of heads. Find the total no.of buffaloes.
Choose the correct choice from the following
A) 11	B) 12	C) 13	D) 15	E) 16

Rationale: "let the number of buffaloes be x and the number of ducks be y = > 4 x + 2 y = 2 ( x + y ) + 22 = > 2 x = 22 = > x = 11 a"
Answer: A