Which of the following statement is/are correct? I. (1071)10 = (2057)8 II.…

2021

Which of the following statement is/are correct?

I. (1071)10 = (2057)8

II. (1AF)16 = (413)10

  1. A.

    Only I

  2. B.

    Only II

  3. C.

    Both I and II)

  4. D.

    Neither I nor II

Attempted by 104 students.

Show answer & explanation

Correct answer: A

To convert (1071)10 to Octal (base 8), we divide the decimal number by 8 and track the remainders:

  1. 1071 / 8 = 133 with a remainder of 7

  2. 133 / 8 = 16 with a remainder of 5

  3. 16 / 8 = 2 with a remainder of 0

  4. 2 / 8 = 0 with a remainder of 2

Reading the remainders from bottom to top, we get (2057)8 .

Statement I is correct.

To convert (1AF)16 to Decimal (base 10), we use the positional weights of hexadecimal, where A = 10 and F = 15:

  1. 1 X 162 = 1 X 256 = 256

  2. A X 161 = 10 X 16 = 160

  3. F X 160 = 15 X 1 = 15

  4. Total: 256 + 160 + 15 = 431

Since (1AF)16 = (413)10, the statement (1AF)16 = (413)10 is incorrect.

Statement II is incorrect.

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