Question

A pill weighs 20 mg. 8/9 of the pill is the active ingredient. How many milligrams are in the part of the pill that is not the active ingredient?

Answer 1

Inactive ingredient = 20/9 = 2.22mg

Explanation:

Given:

Weight of pill = 20mg

If 8/9 of the pill is the active ingredient, then

`1-(8)/(9) = (1)/(9)` of the pill is the inactive ingredient.

Therefore, Number of milligrams that is not an active ingredient =

`(1)/(9)* 20 = (20)/(9)\\ \\= 2.22`