The Bauhinia tea shop shipped a batch of first-grade tea and second-grade tea, of which the quantity of second-grade tea was (1/2) the quantity of first-grade tea, and the purchase price of first-grade tea was 24.8 per kilogram; The purchase price is 16 yuan per kilogram, and now the purchase price is increased by 12.5%. When all the second-grade tea is sold out and the first-grade tea is left (1/3), the total profit is 160 yuan. How many kilograms of high-grade tea?
紫荆花茶叶店运到一级茶和二级茶一批，其中二级茶的数量是一级茶的数量的(1/2)，一级茶的买进价每千克24.8；二级茶的买进价是每千克16元，现在照买进价加价12.5%出售，当二级茶全部售完，一级茶剩下(1/3)时，共盈利160元，那么，运到的一级茶有多少千克？
<gadget id="calculator">12.5 / 100</gadget>
<output>0.125</output>

<gadget id="calculator">16 * 0.125</gadget>
<output>2</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 * (1/2)</gadget>
<output>1</output>

<gadget id="calculator">24.8 * 0.125</gadget>
<output>3.1</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 24.8 * 0.125</gadget>
<output>1.033333</output>

<gadget id="calculator">3.1 - 1.033333</gadget>
<output>2.066667</output>

<gadget id="calculator">1 + 2.066667</gadget>
<output>3.066667</output>

<gadget id="calculator">160 / 3.066667</gadget>
<output>52.173907</output>

<result>52.173907</result>