Some apples are immersed in a cylindrical container with a bottom radius of 15 cm for cleaning. At this time, the water depth in the container is 40 cm. After taking out the apples, the water level drops by 5 cm. What is the volume of these apples in cubic centimeters?
把一些苹果浸没在一个底面半径是15厘米的圆柱形容器里清洗，这时容器里的水深40厘米，拿出苹果后，水面下降了5厘米．这些苹果的体积是多少立方厘米？
<gadget id="calculator">15 ** 2</gadget>
<output>225</output>

<gadget id="calculator">3.14 * 225 * 5</gadget>
<output>3_532.5</output>

<result>3_532.5</result>