There are 12 volleyballs in the sports equipment room of Guangming Primary School, and the number of basketballs is four times that of volleyballs. How many basketballs are there?
光明小学体育器材室有排球12个，篮球的个数是排球的4倍，篮球有多少个？
<gadget id="calculator">12 * 4</gadget>
<output>48</output>

<result>48</result>