Предмет: Математика, автор: Ekaterina84113268

Сколько различных натуральных чисел от 4 до 1004 включительно, не делящихся ни на 5, ни на 8?

Ответы

Автор ответа: Assimate
0
И на 5 и на 8 делятся все числа кратные 5*8 = 40. Следовательно не делятся на них все остальные.
Наибольшее кратное 40 - 1000 
Чисел кратных 40 - 1000/40 = 25
Всего чисел 1004-3=1001
Тогда чисел не делящихся ни на 5 ни на 8 1001-25=976
Ответ: 976. 

 
Автор ответа: Ekaterina84113268
0
Не правильный ответ!!
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