Class 31 bought 320 books for the students in the earthquake-stricken areas of Sichuan. Every 8 books were bundled into a bundle, and every 4 bundles were bundled into a pack. How many packs can it be packed into?
三1班学为四川地震灾区学生买了320本书，每8本捆成一捆，每4捆打成一包．可以打成多少包？
<gadget id="calculator">320 / 8 / 4</gadget>
<output>10</output>

<result>10</result>