Xiaohua's weight is 30.5kg, and her mother's weight is 1.8 times that of Xiaohua's. How many kilograms does the mother weigh?
小华的体重是30.5㎏，妈妈的体重是小华的1.8倍．妈妈的体重是多少千克？
<gadget id="calculator">30.5 * 1.8</gadget>
<output>54.9</output>

<result>54.9</result>