In a bar graph, 5 tons are represented by a bar of 0.5 cm long, and 28 tons are represented by a straight bar of how many centimeters long.
在一幅条形统计图中，用0.5厘米长的直条表示5吨，用多少厘米长的直条表示28吨．
<gadget id="calculator">28 / 5</gadget>
<output>28/5 = around 5.6</output>

<gadget id="calculator">(28/5) * 0.5</gadget>
<output>2.8</output>

<result>2.8</result>