Question

At birth a newborn baby's head is about 25% of its total length. If a baby's head is 4.5 inches long how many total inches is the baby?

Answer 1

25% = 1/4
4 × 4 =16
0.5 × 4 = 2
16 + 2 = 18
4.5 × 4 =18
the baby's body length 18 inches