My mother bought 2.5kg of rice and 1.5kg of lean meat from the supermarket for a total of 29.25 yuan. The rice is 2.70 yuan per kilogram. How much is the lean meat per kilogram?
妈妈从超市买回来2.5千克大米和1.5千克瘦肉一共用去了29.25元，大米每千克2.70元，请问瘦肉每千克多少元？
<gadget id="calculator">2.7 * 2.5</gadget>
<output>6.75</output>

<gadget id="calculator">29.25 - 6.75</gadget>
<output>22.5</output>

<gadget id="calculator">22.5 / 1.5</gadget>
<output>15</output>

<result>15</result>