It is known that a:b:c=1:2:3, and a+b+c=24, then b=how much.
已知a：b：c=1：2：3，且a+b+c=24，则b=多少．
<gadget id="calculator">24 / 6</gadget>
<output>4</output>

<gadget id="calculator">2 * 4</gadget>
<output>8</output>

<result>8</result>