The kindergarten bought a dozen toys, the big class bought 60, the middle class bought 48, and the small class bought 36. How many toys did each class buy on average?
幼儿园买了一打玩具，大班买了60件，中班买了48件，小班买了36件，平均每个班买玩具多少件？
<gadget id="calculator">60 + 48 + 36</gadget>
<output>144</output>

<gadget id="calculator">144 / 3</gadget>
<output>48</output>

<result>48</result>