Вопрос школьника по предмету Математика
Две ученицы идут в школу по одной и той же дороге.Первая идет со скоростью 90м/мин,вторая 75м/мин.Сейчас расстояние между ними 20 м.Какое расстояние будет между девочками через 4 мин?
Ответ учителя по предмету Математика
за 4 минуты 1-я пройдет 90*4=360м, 2-я пройдет 75*4=300м. Разница составит 360-300=60 и плюс начальное расстояние. В конечном итоге, получаем 80м.
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