A health news story that received widespread in the recent years involved the a successful premature birth of octuplets. The eight babies range in weight from 1 lb 8oz to 3 lb 4 oz.

Question

Using the equivalents in the Avoirdupois system, calculate the babies' range in weight in grams and kilograms.

Answer 1

Step 1: There are 16 ounces in a pound, so the first thing you need to do is convert to ounces:

1lb 8oz = (1 x 16) + 8 = 16 + 8 = 24oz

3lb 4oz = (3 x 16) + 4 = 48 + 4 = 52oz

Step 2: Convert ounces to grams (there are 28 grams in an ounce):

24oz x 28g = 672g

52oz x 28g = 1,456g

Step 3: Convert grams to kilograms (there are 1,000 grams in a kilogram):

672g/1,000g = 0.672kg

1,456g/1,000g = 1.456kg

So, your range in grams is 672g to 1,456g, and your range in kilograms is 0.672kg to 1.456kg.