Digital Electronics - Boolean Algebra and Logic Simplification - Discussion

Discussion Forum : Boolean Algebra and Logic Simplification - General Questions (Q.No. 12)
12.
For the SOP expression , how many 1s are in the truth table's output column?
1
2
3
5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
9 comments Page 1 of 1.

Gangi M said:   6 years ago
ABC' = 110.
A'BC = 011.
AB'C = 101.

Normally,
The three input truth table is,
A B C Y
0 0 0 0
0 0 1 1
0 1 0 1
0 1 1 1------>A'BC
1 0 0 1
1 0 1 1 ------>AB'C
1 1 0 1------->ABC'
1 1 1 1

Based on the expression, we consider the marked ones.
So, the answer is 3. Means 3 1's will come.
(3)

Vaibhav wadekar said:   7 years ago
AB'C- 101 because B' (bar) so remaining are same 5+3+6=14 and 14 number in binary 1110 so number of 1s are 3.
(4)

Madhavan said:   8 years ago
I want a brief expression for the answer.

Sunitha said:   9 years ago
Bar take as 0.
So A Bbar C = 1 0 1 = 5.
:
:
:
5 + 3 + 6 = 14 = 1110 = 1 + 1 + 1 + 0 = 3.
(1)

Gitesh Patil said:   10 years ago
Step 1:

Consider product inputs: A B C are 1 and A- B- C- as 0.

Step 2:

Resulting SOP (Sum of product) will look like.

101+011+110 = X.

5+3+6 = 14 i.e 1110.

Step 3:

So we have 3 1's in answer.

Answer: 3.

Shashank said:   1 decade ago
Can't understand please explain and how it is derived 5, 3, 6, 14 how?

Sarvesh said:   1 decade ago
Given function is true if the three minterms are true, so number of minterms is 3, so number of 1's is three.

Shubhangi_n said:   1 decade ago
5+3+6=14=1110

Jahoor alam said:   1 decade ago
5+3+6=14=10110

ie there is three 1.

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