August 2022 1 4 Report
Мальчик купил 4 книги. 2,3,4 стоят 330 рублей, 1,3,4 - 314 рублей, 1,2,4 - 300 рублей, 1,2,3 - 286 рублей. Сколько стоит 1 книга?
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