Two parts made of copper of the same material. One has a volume of 15 cubic centimeters and weighs 133.5 grams. The volume of the other is 20 cubic centimeters, how many grams does it weigh?
同样材质的铜制成的两个零件．一个体积15立方厘米，重133.5克．另一个体积20立方厘米，重多少克？
<gadget id="calculator">133.5 / 15</gadget>
<output>8.9</output>

<gadget id="calculator">8.9 * 20</gadget>
<output>178</output>

<result>178</result>