Conversion Between Number Systems

1. : What is the decimal equivalent of the binary number 1101?
(A) 12
(B) 13
(C) 14
(D) 15

2. : Convert the decimal number 25 into binary.
(A) 11001
(B) 10011
(C) 10101
(D) 11100

3. : What is the octal equivalent of the binary number 101110?
(A) 56
(B) 46
(C) 54
(D) 55

4. : Convert the hexadecimal number 2F into decimal.
(A) 45
(B) 46
(C) 47
(D) 48

5. : What is the binary equivalent of the decimal number 32?
(A) 100000
(B) 11111
(C) 101010
(D) 110000

6. : Convert the decimal number 64 into hexadecimal.
(A) 3F
(B) 40
(C) 41
(D) 42

7. : What is the binary equivalent of the octal number 17?
(A) 1111
(B) 1110
(C) 1011
(D) 1001