The speed of the car is about 21 kilometers per hour, which is faster than the speed of the truck (11/10), so what is the speed of the truck in one hour?
小车的速度约为21千米一个小时，比货车的速度快(11/10)，那么货车一个小时的速度是多少？
<gadget id="calculator">11 / 10</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">1 + (11/10)</gadget>
<output>21/10 = around 2.1</output>

<gadget id="calculator">21 / (21/10)</gadget>
<output>10</output>

<result>10</result>