# Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 1 (Q.No. 4)
4.
Decimal number 10 is equal to binary number
1110
1010
1001
1000
Explanation:

1010 = 8 + 2 = 10 in decimal.

Discussion:
7 comments Page 1 of 1.

PANKAJ KUMAR SETH said:   9 years ago
Hexadecimal code is also called 8-4-2-1 code.

So that 10 is addition of 8 & 2 so this place value only high.

Similarly for any other value like 13 so that addition on 8 & 4& 1 is 13 so this place value is high so answer is 1101.

Sangee said:   9 years ago
0 0 0 0=0
0 0 0 1=1
0 0 1 0=2
0 0 1 1=3
0 1 0 0=4
0 1 0 1=5
0 1 1 0=6
0 1 1 1=7
1 0 0 0=8
1 0 0 1=9
1 0 1 0=10
1 0 1 1=11
1 1 0 0=12
1 1 0 1=13
1 1 1 0=14
1 1 1 1=15
(2)

Tejaswini said:   9 years ago
Also 8+2 = 10,1000+0010 = 1010.

Similarly 8+5 = 13, So, 1000+0101 = 1101.

Ut rava said:   8 years ago
10/2 = 5, cry = 0.
5/2 = 2, cry = 1.
2/2 = 1, cry = 0.

(2)

Nilesh surse said:   8 years ago
Also 9+5 = 14, 1001+0101.

Similarly 9+9 = 18. So, 1001 = 1001.

Anusha byravaram. said:   6 years ago
Use the code:
8421
We can write 10 as 8+2 from these numbers.
So,put 1 in the places of 8 and 2
and 0's in the places of remaining.
now it becomes,1010.
I.e., option (b).