Вопрос школьника по предмету Математика
врвч в течение 69 мин осмотрел 3 больных.первый больной был на приеме 15 мин,а второй в 3 раза меньше,чем первый.Сколько минут был на приёме третий больной?
Ответ учителя по предмету Математика
1)15:3=5 мин- был на приеме 2 больной
2)69-(15+5)=49 минут- был на приеме 3 больной
Ответ:49 минут.
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