Convert the following hexadecimal numbers to octal:

(a) 38AC

(b) 7FD6

(c) ABCD

Convert the following octal numbers to binary:

(a) 123

(b) 3527

(c) 705

Convert the following binary numbers to octal

(a) 111010

(b) 110110101

(c) 1101100001

Convert the following binary numbers to octal

(a) 11001

(b) 10101100

(c) 111010111