A cuboid fish pond with a length of 10m, a width of 6m, and a depth of 2.5m is to be built in the park. If cement is applied to the inner wall and bottom of the fish pond, 0.8m**2 can be applied per kilogram of cement. How many kilograms of cement is needed in total?
公园里要修一个长10m，宽6m，深2.5m的长方体鱼池，如果在鱼池的内壁和底面抹上水泥，每千克水泥可以抹0.8m**2，一共需要多少千克水泥？
<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<gadget id="calculator">10 * 2.5 * 2</gadget>
<output>50</output>

<gadget id="calculator">6 * 2.5 * 2</gadget>
<output>30</output>

<gadget id="calculator">60 + 50 + 30</gadget>
<output>140</output>

<gadget id="calculator">140 / 0.8</gadget>
<output>175</output>

<result>175</result>