The ratio of length to width of a rectangle is 5:3 and its perimeter is 32 cm. What is the area of this rectangle in square centimetres.
一个长方形的长和宽的比是5：3，它的周长是32厘米．这个长方形的面积是多少平方厘米．
<gadget id="calculator">32 / 2</gadget>
<output>16</output>

<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">16 * (5/8)</gadget>
<output>10</output>

<gadget id="calculator">16 - 10</gadget>
<output>6</output>

<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<result>60</result>