The garment factory wants to produce a batch of school uniforms, and the ratio of the number of sets completed in the first week to the total number of sets is 1:5. If 240 sets are produced again, half of this batch of school uniforms will be completed. How many sets of school uniforms are there in total?
服装厂要生产一批校服，第一周完成的套数与总套数的比是1：5．如再生产240套，就完成这批校服的一半．这批校服共多少套？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/2) - (1/5)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">240 / (3/10)</gadget>
<output>800</output>

<result>800</result>