How to Convert Octal to Hexadecimal

Question 4 [NET PAPER 3 JUNE 2015]
Easy type of Question

4. The equivalent hexadecimal notation for octal number 2550276 is: 

A.  FADED

B.  AEOBE

C.  ADOBE

D.  ACABE

Answer : C

Explanation : Easy trick to solve the problem (Octal to Hexadecimal)

Step 1) First convert octal to binary in 3 digit.

OCTAL 2 5 5 0 2 7 6

Binary 010 101 101 000 010 111 110 (3 bit binary for octal)

Step 2) Combine above 3 bits into the 4 bit form (right side to left side).

Binary 0 1010 1101 0000 1011 1110 (Combined above bit into 4 bit)

Step 3) Convert above 4 bit binary to Decimal
Decimal 0 10 13 00 11 14

Step 4) Convert Decimal to Hexadecimal
Hexa A   D 0 B E (above 4 bit binary to HEX)

Remember the following table of Decimal equivalent to Hex. it will help to convert Decimal to Hex very easily.

Decimal	Hexadecimal
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	A
11	B
12	C
13	D
14	E
15	F

The above procedure is explained in 4 steps and it looks lengthy process but actual its a very easy technique to find octal to hexadecimal. you required some practice to solve the same kind of problem.

Give your review or feedback in comment if you have the more easy technique.