Xiao Ming has 27.8 yuan, and his mother gave him another 25 yuan. At this time, Xiao Ming’s money is just enough to buy 6 books. How much is one book?
小明有27.8元钱，妈妈又给了他25元，这时小明身上的钱刚好购买6本海底探宝，海底探宝一本多少元？
<gadget id="calculator">27.8 + 25</gadget>
<output>52.8</output>

<gadget id="calculator">52.8 / 6</gadget>
<output>8.8</output>

<result>8.8</result>