four-wheeled car has a spare wheel, and the five wheels take turns to drive. The car has been driven for 10 minutes. How many minutes has each wheel been driven on average?
四轮小车有一个备用胎，五个轮子轮流行驶，这辆车共行驶了10分钟，每个轮子平均行驶了多少分钟？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">10 * (4/5)</gadget>
<output>8</output>

<result>8</result>