Xiao Ming's mother goes to the supermarket to buy fruit. She first buys 2.5 kg of oranges for 5 yuan, and is going to buy 3 kg of apples. The unit price of apples is 1.6 times that of oranges. How much should I pay for apples?
小明妈妈去超市买水果，她先花5元买了2.5千克的橙子，还准备买3千克的苹果，苹果的单价是橙子的1.6倍，买苹果应付多少钱？
<gadget id="calculator">5 / 2.5</gadget>
<output>2</output>

<gadget id="calculator">2 * 1.6 * 3</gadget>
<output>9.6</output>

<result>9.6</result>