The number system around us is a decimal number system having base 10. Modern-day computers are the Digital systems which use mathematical numbers expressed in different base systems. Given below is a list of some other numbering systems:

  1. Binary number system (base 2)
  2. Octal number system (base 8)
  3. Hexadecimal number system (base 16)

Decimal number 27 in binary is:

  1. 11110
  2. 11011
  3. 11000
  4. 11111

Correct answer: 2


Decimal number 18 in HEX is:

  1. 8
  2. 12
  3. 22
  4. 24

Correct answer: 2


Decimal number 32 in OCT is:

  1. 10
  2. 16
  3. 20
  4. 40

Correct answer: 4


Binary number 1001110 in Decimal is:

  1. 20
  2. 47
  3. 78
  4. 102

Correct answer: 3. 78


HEX number 34 in decimal is:

  1. 26
  2. 38
  3. 52
  4. 79

Correct answer: 3. 52