Uncle Wu takes high blood pressure medicine, a total of 120 tablets, 3 times a day, 2 tablets each time, how many days can I take this bottle of medicine?
吴大爷服用高血压药，一共120片，每日服3次，每次2片，请问这瓶药可以吃多少天？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">120 / 6</gadget>
<output>20</output>

<result>20</result>