The fifth grade students planted 124 trees, and the fourth grade planted 32 more trees than the fifth grade. How many trees are planted in each grade on average?
五年级同学植树124棵，四年级比五年级多植树32棵，平均每个年级植树多少棵？
<gadget id="calculator">124 + 32 + 124</gadget>
<output>280</output>

<gadget id="calculator">280 / 2</gadget>
<output>140</output>

<result>140</result>