At the bookstore, Sarah bought 6 paperback books and 4 hardback books. Her brother bought one-third as many paperback books as Sarah bought, and two times the number of hardback books that she bought. How many books did her brother buy in total?
Her brother bought 6/3=
<gadget id="calculator">6/3</gadget>
<output>2</output>
2 paperbacks.
He bought 4*2=
<gadget id="calculator">4*2</gadget>
<output>8</output>
8 hardbacks.
In total he bought 2+8=
<gadget id="calculator">2+8</gadget>
<output>10</output>
10 books.

<result>10</result>