SOLUTION: what percent is 30 out of 40?

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Question 277: what percent is 30 out of 40?
Answer by whenindoubt(13) About Me  (Show Source):
You can put this solution on YOUR website!
use


is/of = %/100


where
is = 30
of = 40
and %= x
so
30/40 = X%/100
cross multiply
40x= 3000
and solve for x.