What is 15% of 200?

To find 15% of 200, you begin by converting the percentage to a decimal. This involves dividing 15 by 100, which gives you 0.15. Next, you multiply this decimal by the number you're interested in, which is 200. The calculation looks like this:

0.15 × 200 = 30.

Thus, 15% of 200 is 30, making it the correct answer. This calculation illustrates the method of finding a percentage by converting it to a decimal and using multiplication, which is a fundamental concept in percentage problems.