Luigi opened a small restaurant. His friend Giacomo gave him some square tables and some chairs. When he tried to arrange all the tables as single tables with four chairs each, he found he had six chairs too few. When he decided to arrange the tables in pairs with six chairs for each pair of tables, he found he had four chairs left over. How many tables did Luigi receive from Giacomo?
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Junior Kangaroo 2025 (2025)
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