# Computer Aptitude Questions – Binary to Decimal Conversion – Set 4

Q.1) Convert the following binary numbers to decimal numbers.

1101102

a) 58

b) 52

c) 54

d) 50

e) 51

Explanation: c

So,

25 + 24 + 0 + 22 + 21 + 0

= 32 + 16 = 0 + 4 + 2 + 0

= 54

Q.2)Convert the following binary numbers to decimal numbers.

1010012

a) 39

b) 35

c) 44

d) 45

e) 41

= 25 + 0 + 23 + 0 + 0 + 20

= 32 + 0 + 8 + 0 + 0 + 1

= 41

Q.3)Convert the following binary numbers to decimal numbers.

101112

a) 23

b) 25

c) 27

d) 33

e) 21

= 24 + 0 + 22 + 21 + 20

= 16 + 0 + 4 + 2 + 1

= 23

Q.4)Convert the following binary numbers to decimal numbers.

1100012

a) 45

b) 49

c) 51

d) 53

e) 46

= 25 + 24 + 0 + 0 + 0 + 20

= 32 + 16 + 1

= 49

Q.5)Convert the following binary numbers to decimal numbers.

11011102

a) 121

b) 102

c) 115

d) 110

e) 112

= 26 + 25 + 0 + 23 + 22 + 21 + 0

= 64 + 32 + 8 + 4 + 2

= 110

Q.6) Convert the following binary numbers to decimal numbers.

10111012

a) 105

b) 95

c) 93

d) 83

e) 88

= 64 + 16 + 8 + 4 + 1

= 93

Q.7) Convert the following binary numbers to decimal numbers.

110100112

a) 211

b) 195

c) 205

d) 224

e) 216

= 27 + 26 + 0+ 24 + 0 + 0 + 21 + 20

= 128 + 64 + 0 + 16 + 0 + 0 + 2 + 1

= 211

Q.8) Convert the following binary numbers to decimal numbers.

11011002

a) 104

b) 115

c) 112

d) 108

e) 106

= 26 + 25 + 0 + 23 + 22 + 0 + 0

= 64 + 32 + 0 + 8 + 4 + 0 + 0

= 108

Q.9)Convert the following binary numbers to decimal numbers.

10001112

a) 71

b) 75

c) 69

d) 73

e) 86

= 26 + 22 + 21 + 20

= 64 + 4 + 2 + 1

= 71

Q.10) Convert the following binary numbers to decimal numbers.

11101112

a) 181

b) 125

c) 119

d) 108

e) 96

= 26 + 25 + 24 + 22 + 21 + 20

= 64 + 32 + 16 + 4 + 2 + 1

= 119