Question

ИНФОЗНАЙКА-2020 Ако идуародные конкурсдля учащихся по информатика и ИТСистемы система2. Изпестно, что это трехзначное число. В 9-11 системе счисленияразряды да олнены максимальными числами Найдите хто чисто.Ответ лат. p 16-ной системе.1) 2E8; 2) 2D7;3) 2D8;4) 2E7.3. Найдите значение Выражения 6А - 60 в Шестнадцатеричнойсистема счисления. В ответе запишите вычисленное значение в двоичной системе счисления.1) 101 1; 2) 1010; 3) 1001; 4) 11004. Выполнить действия. Результат записать в 5-ной системе.222_3-111_2+333_41)312_5; 2)213_5;3) 313_5; 4)212_5Кодирование информации5. Антон увлекся кодированием и закодировал слово с помощью букврусского алфавита. В итоге онполучил следующее слово:ЕЖЁЖЗЖЬ Чтобы раскодироватьслово, необходимо каждую буквузаменить на вторуно за ней в русскомms) е це, алфаалфавите (А->B,B>Д. Ю->А).Известно, что данный алгоритм нужноприменить 4 раза подряд. Чтообозначает слово, полученное прирасшифровки исходного слова?1) файл хранящий информацию о системе2) графический планшет3)селфи палка4) вид смартфона​

Answer 1

Ответ:

2) 3

3) 2

5) 3

Объяснение:

Answer 2

Information about the International Informatics and IT Systems Contest

The International Informatics and IT Systems Contest is a competition for students that focuses on informatics and IT systems. The system in question is a three-digit number in base 9-11, where the digits are filled with the maximum values. You are asked to find the value of the number in base 16. The options provided are:

1) 2E8 2) 2D7 3) 2D8 4) 2E7

To find the value of the number in base 16, we need to convert it from base 9-11 to base 16. Here are the conversions for each option:

1) 2E8 in base 16 2) 2D7 in base 16 3) 2D8 in base 16 4) 2E7 in base 16

Unfortunately, the values in base 16 are not provided in the question, so we cannot determine the correct answer without further information.

Value of the Expression 6A - 60 in Hexadecimal and Binary Systems

The expression 6A - 60 is given in hexadecimal notation. We need to calculate the value of this expression and then convert it to binary notation. The options provided are:

1) 101 + 1 2) 1010 3) 1001 4) 1100

To calculate the value of the expression, we subtract 60 from 6A:

6A - 60 = 0A

The value of the expression is 0A in hexadecimal notation. To convert it to binary notation, we can use the following conversion table:

| Hexadecimal | Binary | |-------------|--------| | 0 | 0000 | | 1 | 0001 | | 2 | 0010 | | 3 | 0011 | | 4 | 0100 | | 5 | 0101 | | 6 | 0110 | | 7 | 0111 | | 8 | 1000 | | 9 | 1001 | | A | 1010 | | B | 1011 | | C | 1100 | | D | 1101 | | E | 1110 | | F | 1111 |

Therefore, the value of the expression 6A - 60 in binary notation is 1010. The correct option is 2) 1010.

Performing Operations in Different Number Systems

We are given the expression 222_3 - 111_2 + 333_4 and we need to perform the operations and write the result in base 5. The options provided are:

1) 312_5 2) 213_5 3) 313_5 4) 212_5

To perform the operations, we need to convert the numbers to base 10, perform the calculations, and then convert the result back to base 5.

Converting the numbers to base 10: - 222_3 = 2 * 3^2 + 2 * 3^1 + 2 * 3^0 = 18 + 6 + 2 = 26 - 111_2 = 1 * 2^2 + 1 * 2^1 + 1 * 2^0 = 4 + 2 + 1 = 7 - 333_4 = 3 * 4^2 + 3 * 4^1 + 3 * 4^0 = 48 + 12 + 3 = 63

Performing the operations: - 26 - 7 + 63 = 82

Converting the result to base 5: - 82 = 4 * 5^1 + 2 * 5^0 = 20 + 2 = 22

Therefore, the result of the expression 222_3 - 111_2 + 333_4 in base 5 is 212_5. The correct option is 4) 212_5.

Decoding Information

Anton encoded a word using the Russian alphabet. To decode the word, each letter needs to be replaced with the second letter following it in the Russian alphabet (A->B, B->D, Ю->А). The algorithm needs to be applied four times in a row. The options provided for the decoded word are:

1) A file storing information about the system 2) A graphics tablet 3) A selfie stick 4) A type of smartphone

To determine the decoded word, we need to apply the algorithm four times to the original word. However, the original word is not provided in the question, so we cannot determine the correct answer without further information.