There are a total of 120 sets of a certain type of children's clothing in a children's clothing store. 10% of them are sold in the morning, and all of them are sold in the afternoon (3/20). How many sets were sold in total today.
童装店有某款童装共120套，上午卖出了全部的10%，下午卖出了全部的(3/20)．这天一共卖出多少套．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">3 / 20</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">(1/10) + (3/20)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">120 * (1/4)</gadget>
<output>30</output>

<result>30</result>