An elephant weighs 4.2 tons, which is 14 times that of a cow. How many tons does the cow weigh?
一头大象重4.2吨，是一头牛的14倍，牛的重量是多少吨．
<gadget id="calculator">4.2 / 14</gadget>
<output>0.3</output>

<result>0.3</result>