Question about math

by Jay
(Houston)

What is the resulting percentage strength of an ointment if you mix 10 grains of hydrocortisone into aquaphor to make 400 grains?

Comments for
Question about math

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Aug 29, 2010
my answer
by: Barb

the question asks for you to make 400 grains and because the units are the same you can just divide 10/400 and get 0.025 and to get a percentage just multiply by 100 and the percent is 2.5%

Aug 27, 2010
if 1 gm = 15.4gr then 10gr=?
by: sheila

you said that 10gr=0.065gm, but i think that may be wrong.

if 1 gm= 15.4gr, then 10 gr = 0.65gm

Jul 14, 2010
hello
by: Anonymous

we will change grains into grams first :


10 grains = 0.65grams as 1grain=0.065gram

10 grain/410 grain = x/100 % formula

so

0.65/26.65=x/100
=2.4%

or

do not convert

just do as it is

10/410=x/100
2.4%

if u have the answer and it is right then please comment back...thanks

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