Brain Growth The mass of a newborn baby’s brain has been found to increase by about 1.6 mg per minute, (a) How much does the brain’s mass increase in one day? (b) How long does it take for the brain’s mass to increase by 0.0075 kg?
Answer:
(a) Increase in weight of a baby’s brain in one minute is 1.6 mg per minute
we have 
= 1440 min
Therefore increase in weight of baby’s brain in one day is
(b) It is taking 1 day to increase the weight of the brain of a baby by 2.304g.
Or it is taking 1 day to increase the weight of the brain of a baby by 0.002304 kg
Therefore time it took to increase the weight of a baby’s brain by 0.0075 kg is
