Practical quiz

十六进制（简写为hex或下标16）在数学中是一种逢16进1的进位制，一般用数字0到9和字母A到F表示（其中:A~F即10~15）。

webpage //做错了3道 1.In pure binary numeration system, how many bits do we need to represent the decimal value of 12810?:

    6

    7

      8

    9

2.In pure binary numeration system, with n = 5 bits, how many different combinations can be represented?:

  16

  32

  15

    31

3.In pure binary numeration system, with n = 5 bits, we can represent any natural number between the values:

  [0,31]

  [0,15]

    [-15,16]

  [0,16]

4.in pure binary numeration system, with n = 7 bits, how is represented the value 7410?.

Enter the 7-digit number without spaces. Example: 1010100

1001010

5.What is the radix-10 (decimal system) representation of the number 011101112?.

Enter the number with 3 digits without spaces. Example: 212

119

6.What is the radix-16 (hexadecimal system) representation of the number 101101012?.

Enter the number with 2 digits without spaces. Example: A3

B5

7.What is the pure binary representation of the number in radix-16 (hexadecimal system) 8AB016?.

Enter the number with 16 digits without spaces. Example: 1011010100110010 1000101010110000

8.Given two natural numbers in binary representation, X = 101101112 and Y = 01010112 , what is the binary representation of X+Y?.

Enter the number with 8 digits and no spaces. Example: 10010011

11100010 9.Given two natural numbers in binary representation, X = 1000010012 and Y = 100111002 , what is the binary representation of X - Y?.

Enter the number with 7 digits and no spaces. Example: 1001001 11101101 10.10. Given two natural numbers in radix-16 (hexadecimal system) representation, X = 6AB16 and Y = 3FC16 , what is the radix-16 (hexadecimal system) representation of X+Y?.

Enter the number with 3 digits and no spaces. Example: A5B

AA7