Electronics - Number Systems and Codes - Discussion

3. 

Convert the binary number 1011010 to hexadecimal.

[A]. 5B
[B]. 5F
[C]. 5A
[D]. 5C

Answer: Option C

Explanation:

No answer description available for this question.

Neethy N said: (Oct 31, 2010)  
Group 4 bits each from last. It corresponds to 10 that is 'A' in hexadecimal and next four corresponds to '5'

Rupa said: (Aug 4, 2011)  
How it would be 5A if we convert that into decimal we get 91 and then divide that 91 with 16 then we will get 5 and reminder 11.

So in binary 11 means B.

So the answer may be 5B.

Kranthi said: (Apr 13, 2012)  
0101 1010 for converting binary to hexa
5 10 (for 10 value A )
5A

Csg said: (Feb 20, 2013)  
0101 1010 for converting binary to hexa.

5 10 (for 10 value A ).

5A.

S Kumar said: (Aug 9, 2013)  
Converting binary to decimal.

2^6*1+2^5*0+2^4*1+2^3*1+2^2*0+2^1*1+2^0*0=64+0+16+8+0+2+0=90 and so on..converting (90)decimal to hexadecimal.

(16)^1*5+(16)^0*10=510. But in hexadecimal A is the code for digit 10. So answer would be 5A.

Ashish Singh said: (Jan 24, 2014)  
From last RHS group into four then it becomes 5A.

Asad Mehmood said: (Apr 22, 2014)  
(1011010) = ?

= 2^6*1+2^5*0+2^4*1+2^3*1+2^2*0+2^1*1+2^0*0.
= 64+0+16+8+0+2.
= 90.

Now this 90 convert into hexadecimal.
= 16/90_5-10.
= 5A.

A represent 10.

Vimal Sharma said: (Oct 12, 2015)  
(1011010) = ?

0 1 0 1 1 0 1 0.

1st four digit 0 1 0 1.

= 0*2^3+1*2^2+0*2^1+1*2^0 = 0+4+0+1.

= 5 Answer.

Last four digit 1 0 1 0.

= 1*2^3+0*2^2+1*2^1+0*2^0 = 8+0+2+1.

= 11 mtlb ex-0 1 2 3 4 5 6 7 8 9 (B).

= 11 = B answer.

= 5+B.

= 5B answer.

Madhuri said: (Apr 22, 2016)  
Last four digit 1 0 1 0.

= 1*2^3 + 0*2^2 + 1*2^1 + 0*2^0 = 8+0+2+1.

= 11 mtlb ex-0 1 2 3 4 5 6 7 8 9 (B).

= 11 = B answer.

In the above (0*2^0) is taken as 1 so you got B.
The correct is 8+0+2+0 = 10 = A.

Prabir Dhara said: (Sep 26, 2017)  
For them who do not know it, 0*2^0=0,(not 1).

So for last four digit 1010 = 10 means (A)[1*2^3+0*2^2+1*2^1+0*2^0 = 8+0+2+0=10, We know for hexadecimal numbering system is 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,].

Srikar said: (Dec 15, 2017)  
Given binary number is 1011010.

0101 ----- 1010
5 ----- 10 it can be represented as A.
5 ----- A.

So, the answer is 5A.

Steffen Rohit said: (Mar 29, 2018)  
5A is the correct answer. I agree with the given answer.

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