"Всва прочитал интересную книгу за три дня. В первый день он 1 прочитал 30 % книги, во второй часть книги, а третий - последние 40 5 страниц. Сколько страниц в книге?
Vasyy123
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25.12.2021 04:34
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остальные 70% делиш на второй части книги потом выходит 1%равен на сколько страниц и умножил на 100