How many circles with a diameter of 20 cm can be cut from a rectangular piece of paper with a length of 1 meter and a width of 60 cm?
在长1米，宽60厘米的长方形纸上，剪直径是20厘米的圆，最多能剪多少个．
<gadget id="calculator">100 / 20</gadget>
<output>5</output>

<gadget id="calculator">60 / 20</gadget>
<output>3</output>

<gadget id="calculator">1 * 5 * 3</gadget>
<output>15</output>

<result>15</result>