Question

A bird has a head 12cm long. The tail is equal to the size of the head plus a 1/2 of the size of the body. The body is the size of the head plus tail. How long is the bird?

Answer 1

Answer:

head=9

tail=9+body/2

body=head+tail

body=9+(9+body/2)

body=18+18+body/2

2body=36+body

body=36

tail=9+36/2

tail=24

the bird size is =(head+tail+body)=(9+24+36)=69cm