Xiaogang reads a storybook, 26 pages a day, and half of it is read in 6 days. How many pages are there in this book?
小刚读一本故事书，每天读26页，6天读了一半．这本书一共多少页？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6 / (1/2)</gadget>
<output>12</output>

<gadget id="calculator">26 * 12</gadget>
<output>312</output>

<result>312</result>