Grandpa Li is taking a medicine, and the instructions say: 40 tablets per box, 3 to 4 tablets each time, three times a day. This medicine is 25 mg per tablet, how many mg does Grandpa Li take at most a day?
李爷爷在吃一种药，说明上写着：每盒40片，每次3到4片，一日三次．这种药每片25毫克，李爷爷一天最多用药多少毫克？
<gadget id="calculator">4 * 3 * 0.25</gadget>
<output>3</output>

<result>3</result>