<prompt> Weight of a newborn quadruples at -6 months1 year2 years4 years  <response>: Ans. is c i.e., 2 years o The average birth weight of neonates is about 3 Kg.o During first few days after birth, the newborn loses extracellular fluid equivalent to about 10 of the body weight. Most full term infants regain their birth weight by the age of 10 dayso Subsequently, they gain weight at a rate of approximately 25 to 30 gm per day for the first 3 months of life. Thereafter they gain about 400 gm of weight every month for the remaining part of first year.AgeWeightBirth3 Kg5 months6 Kg 2 x birth weight1 year9 Kg 3 x birth weight2 years12 kg 4 x birth weight3 years15 kg 5 x birth weight5 years18 kg 6 x birth weight7 years21 kg 7 x birth weight10 years30 kg 10 x birth weight 