Child Star Kindergarten bought 5 kilograms of strawberries for the children in the morning, and it cost 40 yuan. In the afternoon, they wanted to buy 15 kilograms of strawberries (with the same price), how much would it cost?
童星幼儿园上午给小朋友们买了5千克草莓，用去40元，下午要买15千克草莓(价格不变)，要用多少元？
<gadget id="calculator">40 / 5</gadget>
<output>8</output>

<gadget id="calculator">8 * 15</gadget>
<output>120</output>

<result>120</result>