There are 4 classes in the fourth grade of Chunyang Primary School, and each class bought 8 "Fairy Tale Books", which cost a total of 768 yuan. How much did you spend on average per book?
春阳小学四年级有4个班，每个班买8本《童话故事书》，一共用了768元．平均每本书用了多少元？
<gadget id="calculator">4 * 8</gadget>
<output>32</output>

<gadget id="calculator">768 / 32</gadget>
<output>24</output>

<result>24</result>