30% of what is 15?

1 Answer
Euan S.
Jul 19, 2016

50

Explanation:

Notice that to find 30% of something we can multiply by 0.30. This being the decimal form of 30/10030100. Hence,

15 = 0.30*X15=0.30⋅X

X = 15/(0.30) = 150/3 = 50X=150.30=1503=50

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