A schoolbag is 64 yuan, the price of a pencil case is (1/4) of a schoolbag, and the price of a pen is (1/2) of a pencil case. How much is a pen?
一只书包64元，一个文具盒的价钱是书包的(1/4)，一枝钢笔的价钱是一个文具盒的(1/2)，一枝钢笔多少元？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">64 * (1/4) * (1/2)</gadget>
<output>8</output>

<result>8</result>