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Number Systems and Codes problems


  • 1. The binary number for octal 458 is ________.

  • Options
  • A. 100010
  • B. 100101
  • C. 110101
  • D. 100100
  • Discuss
  • 2. Convert the following BCD number to decimal.
    100000000011bcd

  • Options
  • A. 8003
  • B. 803
  • C. 1003
  • D. 103
  • Discuss
  • 3. Convert 45710 to hexadecimal.

  • Options
  • A. 711
  • B. 2C7
  • C. 811
  • D. 1C9
  • Discuss
  • 4. What decimal number does 25 represent?

  • Options
  • A. 10
  • B. 31
  • C. 25
  • D. 32
  • Discuss
  • 5. Convert the following octal number to binary.
    768

  • Options
  • A. 1101112
  • B. 1111102
  • C. 1111002
  • D. 1001112
  • Discuss
  • 6. Convert the Gray code 1011 to binary.

  • Options
  • A. 1011
  • B. 1010
  • C. 0100
  • D. 1101
  • Discuss
  • 7. The base of the hexadecimal system is:

  • Options
  • A. eight.
  • B. sixteen.
  • C. ten.
  • D. two.
  • Discuss
  • 8. Convert the following binary number to decimal.
    100110102

  • Options
  • A. 154
  • B. 155
  • C. 153
  • D. 157
  • Discuss
  • 9. The difference of 111 ? 001 equals ________.

  • Options
  • A. 100
  • B. 111
  • C. 001
  • D. 110
  • Discuss
  • 10. What is the result when a decimal 5238 is converted to base 16?

  • Options
  • A. 327.375
  • B. 12.166
  • C. 1388
  • D. 1476
  • Discuss

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