The total price of the three batches of goods is 6500 yuan. According to quality: the ratio of the second batch to the third batch is 1:5, the ratio of the first batch to the second batch is 1:4; according to unit price: the ratio of the first batch to the second batch is 6:1, the ratio of the second If the ratio between the first batch and the third batch is 7:3, what is the value of the first batch of goods?
三批货物的总价是6500元．按质量：第二批和第三批的比是1：5，第一批和第二批的比是1：4；按单价：第一批和第二批的比是6：1，第二批和第三批的比是7：3，则第一批货物值多少元．
<gadget id="calculator">21 + 14 + 30</gadget>
<output>65</output>

<gadget id="calculator">21 / 65</gadget>
<output>21/65 = around 0.323077</output>

<gadget id="calculator">6_500 * (21/65)</gadget>
<output>2_100</output>

<result>2_100</result>