<prompt> Infant body weight is tripled by age of-5 months11 months2 years18 months  <response>: Ans. is b i.e., 11 Months o The average bih weight of neonates is about 3 Kg. o During first few days after bih, the newborn loses extracellular fluid equivalent to about 10 of the body weight. o Most full term infants regain their bih weight by the age of 10 days. o Subsequently, they gain weight at a rate of approximately 25 to 30 gm per day for the first 3 months of life. o Thereafter they gain about 400 gm of weight every month for the remaining pa of first year. Age Weight Bih 3 Kg 5 months 6 Kg 2 x bih weight 1 year 9 Kg 3 x bih weight 2 years 12 kg 4 x bih weight 3 years 15 kg 5 x bih weight 5 years 18 kg 6 x bih weight 7 years 21 kg 7 x bih weight 10 years 30 kg 10 x bih weight o A child gains about 2 kg every year between the age of 3 and 7 years and 3 kg per year after that till the pupeal growth spu begins. 