memcat memcat
  • 25-11-2022
  • Mathematics
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В многоквартирном доме 1 640 квартир, их них 230 – трехкомнатные. Двухкомнатных в 3 раза больше, чем трехкомнатных. Остальные – однокомнатные. Сколько однокомнатных квартир в доме.

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