 <translate> A milk teas shop was able to sell a total of 50 cups of milk tea yesterday. Two-fifths of their sales are winter melon flavor, three-tenths are Okinawa flavor, and the rest are chocolate flavor. How many cups of chocolate-flavored milk tea were they able to sell yesterday? Let's think first. Chain of thought: <yor> Ile itaja ti wọn ti n ta tii oyinbo kan ni wọn ti ta àpapọ̀ àádọ́ta agolo tii oyinbo ni ọjọ́ àná. Ìdá méjì nínú márùn-ún àwọn ohun tí wọ́n ń tà ni wọ́n fi ń ṣe èèpo ẹ̀yìn tí wọ́n máa ń lò nígbà òtútù, ìdá mẹ́ta nínú mẹ́wàá ni wọ́n fi ń ṣe èèpo ẹ̀yìn tí wọ́n máa ń lò ní Okinawa, àwọn tó kù sì jẹ́ èèpo ẹ̀yìn tí wọ́n fi ń ṣe ṣokoléètì. Ìgò mílíìkì tí wọ́n fi ṣokoléètì ṣe ni wọ́n ta lọ́jọ́ tó kọjá? Ẹ jẹ́ ká kọ́kọ́ ronú. Àlàfo èrò: 