What is 15% of 200?

To calculate 15% of 200, you can convert the percentage into a decimal by dividing it by 100. So, 15% becomes 0.15. You then multiply this decimal by the total amount:

0.15 * 200 = 30.

This shows that 15% of 200 is indeed 30. This is a straightforward application of the concept of percentages as parts of a whole. Understanding this calculation is essential in various real-life situations, such as finding discounts, calculating taxes, or analyzing data where percentages are common. The correct answer reflects this fundamental mathematical principle.