In a group of ducks and cows, the total number of legs are 8 more than twice the no. of heads. Find the total no.of buffaloes.	Options:	A) 5	B) 4	C) 6	D) 3	E) 2

Rationale: "let the number of buffaloes be x and the number of ducks be y = > 4 x + 2 y = 2 ( x + y ) + 8 = > 2 x = 8 = > x = 4 b"
Answer: B