In order to enrich the sports activities of the students, the school has prepared 20 footballs, and the number of basketballs is three times that of footballs. How many basketballs are there?
为丰富同学们的体育活动，学校准备了足球20个，篮球的个数是足球的3倍，篮球有多少个？
<gadget id="calculator">20 * 3</gadget>
<output>60</output>

<result>60</result>