To prepare a brine, add 2 kg of salt to 10 kg of water. How many kilograms of salt are needed to prepare 60 kilograms of this brine now?
配制一种盐水，10千克水中加2千克盐．现在要配制60千克这种盐水，需要盐多少千克？
<gadget id="calculator">2 * 60</gadget>
<output>120</output>

<gadget id="calculator">10 + 2</gadget>
<output>12</output>

<gadget id="calculator">120 / 12</gadget>
<output>10</output>

<result>10</result>