It took Xiao Wang 2400 minutes to read a 240-page book, so how many hours did he spend on average per page?
小王看完一本240页的书用了2400分钟，那么他每看一页平均用多少小时
<gadget id="calculator">40 / 240</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>