CBSE NET JANUARY 2017 PAPER II
The hexadecimal equivalent of the octal number 2357 is:
(1) 2EE
(2) 2FF
(3) 4EF
(4) 4FE
Ans: (3)
Explanation:
(2357)8 to binary = 010 011 101 111. Each digit is broken into 3 binary bits.
Now regroup these bits into groups of 4 to convert to hexadecimal.
= 0100 1110 1111
= 4EF
So correct answer is 3.