The height of a child is double the bih height at the age of-
Ans. is 'd' i.e., 4 years o An infant usually doubles his bih height by the age of 41/2 years Age Bih 3 months 9 months 1 year 2 years 41/2 years Height 50 cm 60 cm 70 cm 75 cm 90 cm 100 cm
1 year
2 years
3 years
4 years