Question

A typical multivitamin tablet can contain 2.0 mg of vitamin B2 (riboflavin), and the RDA is 0.0030 g/day. How many such tablets should a person take each day to get the proper amount of this vitamin, assuming that he gets none from any other sources?

Answer 1

First we need to convert these two amounts (0.0030g and 2.0mg) into the same base.
Well, it turns out that 1 mg = 0.001g.
So, 2mg = 0.002g
So how many 0.002g tablets does someone need to take 0.003g of B2?
We can divide 0.003g by 0.002g (or really just 3 divided by 2) to find this out.
It turns out that the person needs to take 1 and 1/2 tablets a day to get the proper amount of this vitamin.
Practically though, the person would probably just take 2 tablets a day.

Answer 2

thanks so much

Answer 3

No problem!