The number 2 is 20% of what number?

To determine what number 2 is 20% of, we can set up an equation based on the definition of percentage. The equation can be formulated as follows:

Let ( x ) represent the unknown number. Since 20% can be expressed as a decimal (0.20), the equation becomes:

[ 0.20x = 2 ]

To isolate ( x ), you would divide both sides of the equation by 0.20:

[ x = \frac{2}{0.20} ]

Calculating the right side:

[ x = \frac{2}{0.20} = 2 \div 0.20 = 2 \div \frac{20}{100} = 2 \times \frac{100}{20} = 2 \times 5 = 10 ]

Thus, the number 2 is indeed 20% of 10. This confirms that the correct answer is 10.