Вопрос школьника по предмету Математика
про положительные числа а и б известно что 75% от числа а равно 40% от числа б. варианты ответов: 8а=15б , 5а=12б , 3а=2б , 7а=8б , 15а=8б
Ответ учителя по предмету Математика
ответ последний 15а=8б……………………………….
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