21 is 30% of what number?

Question

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Answer 1

To find out what number 21 is 30% of, you can set up the equation:

\[ 21 = 0.30 \times x \]

Where \( x \) is the unknown number. To solve for \( x \), you can rearrange the equation:

\[ x = \frac{21}{0.30} \]

Now, calculate \( x \):

\[ x = \frac{21}{0.30} = 70 \]

Therefore, 21 is 30% of 70.

The answer is:

70