There are two bookshelves, A and B. It is known that there are 1200 books in bookshelf A, and 200 books in shelf B are (1/2) more than bookshelf A. How many books are there in shelf B?
甲、乙两个书架，已知甲书架有书1200本，乙书架的书比甲书架的(1/2)多200本，乙书架有书多少本？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1_200 * (1/2)</gadget>
<output>600</output>

<gadget id="calculator">600 + 200</gadget>
<output>800</output>

<result>800</result>