The school bought 5 boxes of books, 120 books in each box, and distributed them to 6 grades on average. How many books were distributed to each grade?
学校买来5箱图书，每箱120本，平均分给6个年级，每个年级分得多少本？
<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">120 * (5/6)</gadget>
<output>100</output>

<result>100</result>