Xiaogang went to buy vegetables with his mother, and bought 1.2 kilograms of garlic moss at 5.6 yuan per kilogram; he also bought 1.6 kilograms of beans, which cost 2.88 yuan less than buying garlic moss. How much is a bean per kilogram?
小刚跟妈妈去买蔬菜，买了蒜苔1.2千克，每千克5.6元；又买了豆角1.6千克，比买蒜苔少用2.88元．豆角每千克多少元？
<gadget id="calculator">1.2 * 5.6</gadget>
<output>6.72</output>

<gadget id="calculator">6.72 - 2.88</gadget>
<output>3.84</output>

<gadget id="calculator">3.84 / 1.6</gadget>
<output>2.4</output>

<result>2.4</result>