An elephant weighs 5.25 tons, and a whale weighs about 30 times that of an elephant. How many tons does a whale weigh?
一头大象体重5.25吨，一头鲸的体重约是大象的30倍，一头鲸的体重有多少吨？
<gadget id="calculator">5.25 * 30</gadget>
<output>157.5</output>

<result>157.5</result>