The ratio of red and blue balloons is 3:2, if there are 60 red balloons, how many blue balloons are there
红、蓝气球个数的比是3：2，红气球有60个，则蓝气球有多少个
<gadget id="calculator">60 / 3</gadget>
<output>20</output>

<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<result>40</result>