A cuboid-shaped goldfish tank measures 1m in length, 50cm in width and 0.8m in height when measured from the inside. When the height of the water in the tank is 0.6m, how much does the water in the tank weigh? (1 cubic meter of water weighs 1 ton)
一个长方体形状的金鱼缸，从里面量长1m，宽50cm，高0.8m，当缸内装水高度为0.6m时，鱼缸里的水有多重？(1立方米水重1吨)
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 * (1/2) * 0.6 * 1</gadget>
<output>0.3</output>

<result>0.3</result>