Yang Yang spent 6 yuan to buy 4 ballpoint pens. Xiaogang wants to buy 6 of the same ballpoint pens, how much will it cost?
阳阳买4枝圆珠笔用了6元钱．小刚想买同样的圆珠笔6枝，要用多少钱？
<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) * 6</gadget>
<output>9</output>

<result>9</result>