Xiaojie spent 10 yuan to buy 2.5 kilograms of bananas, how much does it cost to buy 1.5 kilograms of bananas now?
小杰花10元钱买了2.5千克香蕉，现在购买1.5千克香蕉需要多少元．
<gadget id="calculator">10 / 2.5</gadget>
<output>4</output>

<gadget id="calculator">4 * 1.5</gadget>
<output>6</output>

<result>6</result>