Teacher Wang walks 5 kilometers per hour, and it takes 8 minutes less per kilometer to ride a bicycle than to walk. Teacher Wang rides a bicycle how many times faster than he walks.
王老师步行每小时行5千米，骑自行车比步行每千米少用8分钟．王老师骑自行车的速度是步行的多少倍．
<gadget id="calculator">60 / 5</gadget>
<output>12</output>

<gadget id="calculator">12 - 8</gadget>
<output>4</output>

<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<result>3</result>