1.2 times of a number is 8.4, how much is 2 times of this number.
一个数的1.2倍是8.4，这个数的2倍是多少．
<gadget id="calculator">8.4 / 1.2</gadget>
<output>7</output>

<gadget id="calculator">7 * 2</gadget>
<output>14</output>

<result>14</result>