It took 1 minute for Aunt Wang to walk from the first floor to the third floor. Her family lives on the seventh floor. How many minutes will it take for her to get home at this speed?
王阿姨从一楼走到三楼用了1分钟，她家住在7楼，照这样的速度她回到家还需要几分钟？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

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

<gadget id="calculator">7 - 3</gadget>
<output>4</output>

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

<result>2</result>