Hard
Bird Riddle
A bird has a head 9cm long. The tail is equal to the size of the head plus half of the size of the body. The body is the size of the head plus the tail. How long is the bird?
Choose an answer
A.54cm
B.63cm
C.81cm
D.72cm. Th head is 9cm. The tail is 18 + 9= 27cm. The body is 9 + 18 + 9= 36cm. 9 + 27 + 36= 72cm.
Answer: 72cm. Th head is 9cm. The tail is 18 + 9= 27cm. The body is 9 + 18 + 9= 36cm. 9 + 27 + 36= 72cm.
Solving the system of equations for head, tail, and body in terms of each other gives head=9, tail=27, body=36, totaling 72cm.