A, B, and C each run for an hour. A runs 11 kilometers, B runs 11.2 kilometers, and C runs 11.1 kilometers. How many kilometers do they run on average per hour?
甲、乙、丙三个各跑一小时，甲跑了11千米，乙跑了11.2千米，丙跑了11.1千米，三人平均每小时跑多少千米？
<gadget id="calculator">11 + 11.2 + 11.1</gadget>
<output>33.3</output>

<gadget id="calculator">1 + 1 + 1</gadget>
<output>3</output>

<gadget id="calculator">33.3 / 3</gadget>
<output>11.1</output>

<result>11.1</result>