Tickets for Danxia Mountain are 100 yuan each. Xiao Ming and his father and mother are going to visit together. How much does it cost to buy tickets?
丹霞山的门票每张100元，小明和他的爸爸、妈妈一起去游览，买门票需要多少钱？
<gadget id="calculator">3 * 100</gadget>
<output>300</output>

<result>300</result>