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Use the google search bar on side panel. It searches through all previous GATE/other questions. For hardcopy of previous year questions please see
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Recent questions tagged combinational
+1
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1
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1
Recurrence Relation SelfDoubt
What will be solution of recurrence relation if roots are like this: r1=2, r2=2, r3=2, r4=2 is this the case of repetitive roots?
asked
May 14
in
Combinatory
by
aditi19
Active
(
4.9k
points)

52
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relations
recurrence
recurrenceeqation
discretemathematics
combinational
0
votes
1
answer
2
Combination doubt
A shipping clerk has to weigh 10 distinct packets. He weighs them four at a time, weighing all the possible combinations of the packets from the ten. The average weight of all the weighing combination is found to be 800 gm. What is the combined weight of all the size packets?
asked
May 7
in
Numerical Ability
by
aditi19
Active
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4.9k
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27
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gate2016ec3
combinational
0
votes
0
answers
3
Morris Mano
Implement the function using PLA
asked
Nov 22, 2018
in
Digital Logic
by
kd.....
Junior
(
823
points)

32
views
digitallogic
combinational
programmablelogicarray
0
votes
1
answer
4
Digital electronics Morris Mano
Please provide, how to make the truth table of such type of questions
asked
Nov 14, 2018
in
Digital Logic
by
kd.....
Junior
(
823
points)

75
views
digitallogic
booleanalgebra
combinational
digitalcircuits
0
votes
0
answers
5
TESTBOOK TEST SERIES
asked
Sep 17, 2018
in
Digital Logic
by
Avik Chowdhury
Junior
(
627
points)

51
views
combinational
0
votes
1
answer
6
basic doubt
In how many ways can 10 similar roses be distributed among 3 girls? In how many ways can 10 different roses be distributed among 3 girls?
asked
Aug 25, 2018
in
Combinatory
by
Vegeta
Junior
(
819
points)

45
views
permutationandcombination
combinational
0
votes
1
answer
7
Adder delay
A full adder circuit takes 20 ns to generate the carryout bit and 40 ns for the sum bit. When 4, 1 bit full adders are cascaded, the maximum rate of additions per second will be $\text{____} \times 10^6 $sec. Usual Solution given The ... calculate the total time taken to perform one round of four bit addition. Right? (Similar old question: https://gateoverflow.in/83500/digitals)
asked
Aug 19, 2018
in
Digital Logic
by
GateAspirant999
Active
(
2.4k
points)

253
views
digitallogic
adder
combinational
digitalcircuits
+2
votes
1
answer
8
TEST SERIES
PLEASE GIVE THE CORRECT ANSWER
asked
Jan 12, 2018
in
Digital Logic
by
Abhi Girin
(
371
points)

199
views
digitallogic
combinational
+1
vote
0
answers
9
Kenneth Rosen Ex 5.5
How many positive integers less than 1,000,000 have the sum of their digits equal to 19?
asked
Dec 21, 2017
in
Combinatory
by
Ayush Upadhyaya
Boss
(
26.7k
points)

106
views
generatingfunctions
combinational
0
votes
0
answers
10
Half adders
asked
Dec 5, 2017
in
Digital Logic
by
Parshu gate
Active
(
3.1k
points)

135
views
combinational
digitallogic
adder
+2
votes
4
answers
11
Gate CS 1996 Question no. 47
f implements, A) (ABC)' + A'BC' + ABC B) A + B + C C) A ⊕ B ⊕ C D) AB + BC + CA
asked
Nov 14, 2017
in
Digital Logic
by
Injila
(
167
points)

240
views
multiplexer
combinational
digitalcircuits
+1
vote
1
answer
12
testbook test series
number of string of length 3 using 4 distinct alphabet... including string of length zero and what if dont.?
asked
Oct 7, 2017
in
Combinatory
by
rohit vishkarma
Active
(
1.1k
points)

81
views
combinational
0
votes
0
answers
13
GATE 90
asked
Sep 30, 2017
in
Digital Logic
by
Kuldeep Pal
Active
(
1.4k
points)

95
views
combinational
digitalcircuits
0
votes
0
answers
14
GATE 1996
asked
Sep 30, 2017
in
Digital Logic
by
Kuldeep Pal
Active
(
1.4k
points)

93
views
combinational
digitalcircuits
0
votes
0
answers
15
GATE 2002
asked
Sep 30, 2017
in
Digital Logic
by
Kuldeep Pal
Active
(
1.4k
points)

120
views
combinational
digitalcircuits
0
votes
1
answer
16
Notes
Please explain me what is this question about and the solution .
asked
Aug 30, 2017
in
Digital Logic
by
Parshu gate
Active
(
3.1k
points)

129
views
digitallogic
multiplexer
combinational
+1
vote
0
answers
17
Equal coefficients
$\begin{align*} &A = \left ( p x + q \right )^{504} \text{ where p and q are +ve integers and }gcd(p,q) = 1 \\ &\text{Given } \left [ x^4 \right ] = \left [ x^5 \right ] , \text{ where } \left [ x^k \right ] \text{ denote the coefficient of }x^k \text{ in A.} \\ &\text{What is p+q ?} \end{align*}$
asked
Jul 1, 2017
in
Combinatory
by
dd
Veteran
(
56.8k
points)

40
views
discretemathematics
combinational
+1
vote
3
answers
18
ISRO 2016EC Combinational circuit
Given circuit represents (a) INVERTER (b) AND (c) OR (d) NOR
asked
Feb 22, 2017
in
Digital Logic
by
sh!va
Boss
(
32.2k
points)

245
views
digitallogic
isro2016ece
isroece
combinational
0
votes
1
answer
19
ISRO2016EC combinational logic
in given combinational logic X=? (a) X = AB'C' +A'BC'+ A'B'C+ ABC (b) X = A'BC +A'BC'+ AB'C+ A'B'C' (c) X = AB + BC + AC (d) X= A'B'+B'C'+A'C'
asked
Feb 22, 2017
in
Digital Logic
by
sh!va
Boss
(
32.2k
points)

235
views
isro2016ece
isroece
digitallogic
combinational
0
votes
1
answer
20
digital logic
asked
Feb 4, 2017
in
Digital Logic
by
mohit chawla
Active
(
2.6k
points)

92
views
digitallogic
combinational
0
votes
0
answers
21
Self Doubt
How is the no of gates required for array multiplier 2n1,As much as I know we need for a m multiplier bit and n multiplicand bit mn and gates and m1) adders to add the result of and gates?
asked
Jan 28, 2017
in
Digital Logic
by
Gate Madrista
(
355
points)

121
views
digitallogic
arraymultiplier
combinational
0
votes
1
answer
22
Digital logicWaveform
asked
Jan 26, 2017
in
Digital Logic
by
reena_kandari
Loyal
(
7.8k
points)

540
views
combinational
digitalcircuits
digitallogic
+2
votes
1
answer
23
Identify MOD of the Counter
Clock Q0 Q1 Q2 State 0 0 0 0 1 1 0 0 1 2 0 1 0 2 3 1 1 0 3 4 0 0 1 4 5 1 0 1 5 At clock t5 or lets say after 5 clock pulses Q0 and Q2 becomes 1 and through NAND gate they will become 0 and since preset ... connecting clock to the gate play any significance role? Doubt is similar to the one of the gate questions asked prviously : https://gateoverflow.in/1234/gate200736
asked
Jan 22, 2017
in
Digital Logic
by
yg92
Active
(
3.1k
points)

736
views
digitallogic
digitalcounter
flipflop
sequential
combinational
+1
vote
1
answer
24
Digital Logic
asked
Jan 11, 2017
in
Digital Logic
by
reena_kandari
Loyal
(
7.8k
points)

93
views
combinational
digitalcounter
digitallogic
0
votes
0
answers
25
full adder
Can anyone explain me this theory with an example(from the third line)...??
asked
Dec 14, 2016
in
Digital Logic
by
Anmol Verma
Active
(
1.4k
points)

84
views
digitallogic
adder
combinational
0
votes
2
answers
26
Simple Doubt in digital
Consider a simple OR gate with 2 inputs A and B, a ouput O which is taken back and reconnected to B as feedback. Now, A=0 and B=0 so O=0. If we give A=1 for like 1 sec , O=1 and now if we turn off the power from the circuit , 1.) will we get a infinite ... it and and O=1 (Assume a case when A=1,B=0 so O=1 , Now i quickly set A=0 , will this not automatically make B=1) ?
asked
Nov 27, 2016
in
Digital Logic
by
Aakash Das
Junior
(
533
points)

318
views
digitallogic
combinational
digitalcircuits
circuitoutput
+4
votes
2
answers
27
Minimum number of NAND gates for logic circuit
asked
Nov 14, 2016
in
Digital Logic
by
Rakesh K
Active
(
1.8k
points)

2k
views
digitallogic
kmap
combinational
+1
vote
1
answer
28
Digital Logic
The 4 bit shift register is initialized to value 1000 for (Q3,Q2,Q1,Q0) . The D input is derived from the Q0,Q2,and Q3 through two XOR gates as shown in figure below . The Pattern 0001 will appear at pulse  ? D Q0 Q1 Q2 Q3 and logic gates are XNOR (order in image . I wrote it because in the image it is not clear) .
asked
Nov 4, 2016
in
Digital Logic
by
Amit Pal
Active
(
4.1k
points)

243
views
digitallogic
digitalcircuits
combinational
+1
vote
0
answers
29
Digital logic doubt
Q: One general doubt I m having is that can combinational circuit namely multiplexer, demultiplexer and decoder be implemented in POS ( Product of Sum) form?? If so what modification is required ?
asked
Oct 27, 2016
in
Digital Logic
by
Habibkhan
Veteran
(
101k
points)

137
views
digitallogic
combinational
pos
+23
votes
3
answers
30
Find the number of integral solutions using generating function
Find the number of integral solutions of $\large 2x + y + z = 20$ with $x, y, z >= 0$ ? I tried finding coefficient of $x^{20}$ in $(1 + x^2 + x^3 + ...... + x^{10})(1+ x^2 + .......... + x^{20})^2$, but it gives wrong answer ?
asked
Sep 1, 2016
in
Combinatory
by
mcjoshi
Boss
(
28.4k
points)

3.1k
views
permutationandcombination
combinational
generatingfunctions
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