The binary representation for the hexadecimal number 4A is:

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RRB ALP Electronics Mechanic 21 Jan 2019 Official Paper (Shift 3)
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  1. 101111
  2. 111101
  3. 101101
  4. 1001010

Answer (Detailed Solution Below)

Option 4 : 1001010
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Hexadecimal representation system

Hexadecimal

Binary code

0

0000

1

0001

2

0010

3

0011

4

0100

5

0101

6

0110

7

0111

8

1000

9

1001

A

1010

B

1011

C

1100

D

1101

E

1110

F

1111

 

A is represented by 1010 and 4 is represented by 0100.

4A = 01001010

The left most number is 0, so 4A can be represented as 1001010

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