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?

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.
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.
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.
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.
ie there is three 1.
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