Предмет: Математика, автор: sovkatoretto

Скільки чисел серед перших 150 натуральних чисел таких, які не діляться ані на 3, ані на 7, ані на 11?

Ответы

Автор ответа: Аноним

Сколько чисел среди первых 150 натуральных чисел не делящихся ни на 3, ни на 7, ни на 11?

150/3=50 чисел делятся на 3

150/7= 21,4....= 21 чисел делятся на 7

(числа должны быть натуральными )

150/11= 13,6....=13 чисел делятся на 11

150-50-21-13= 66 чисел не делятся ни на 3,ни на 7,ни на 11

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