8 is 20% of what number?

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Answer 1 · 2014-11-07T16:46:19

By writing "20% of #x# is 8" in math notation,

#20/100x=8#

by dividing the numerator and denominator by #20#,

#=> 1/5 x=8#

by multiply by #5#,

#=> x=40#

Hence, 20% of 40 is 8.

I hope that this was helpful.