Предмет: Математика, автор: voitelik51

очень срочно, пожалуйста

Приложения:

vanillali: Прости, я не умею читать по украински. Можешь перевести? Попробую решить.

voitelik51: сложите все читерёхзначные числа, которые содержат три пятёрки и делятся на 3

voitelik51: четырехзначные*

voitelik51: две

voitelik51: пятёрки

voitelik51: блин, клавиатура, которые содержат две пятёрки

vanillali: Ох, чёрт, звучит трудно, однако могу лишь дать подсказку: чтобы число делилось на 3, надо, чтобы сумма его цифр делилась на три, например, число 5520 будет делиться на 3.

vanillali: Можно попробовать искать все числа, которые будут на 3 делиться, и потом их сложить, но я думаю, это будет очень муторно.

voitelik51: да, это сложно. спасибо тебе за совет!!

Ответы

Автор ответа: rimmablackcomedian

1

Ответ:

5502, 5520, 5025, 5205, 2055, 2505, 2550

5508, 5580, 5085, 5805, 8055, 8505, 8550

5511, 5115, 1155, 5151, 1551, 1515

5514, 5541, 5145, 5415, 1455, 4155, 4551, 4515

<3

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