The surface of 100 oil barrels needs to be painted, and 0.6kg of paint is required per square meter. The diameter of the bottom of each oil drum is 40cm and the height is 60cm. How many kilograms of paint are needed?
100个油桶的表面要刷漆，每平方米需油漆0.6kg．每个油桶的底面直径是40cm，高60cm，需多少千克油漆？
<gadget id="calculator">1.0048 * 0.6 * 100</gadget>
<output>60.288</output>

<result>60.288</result>