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Recent questions and answers in Engineering Mathematics
+1
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2
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1
PGEE 2018
p: n is a prime number q: n mod 30 is prime number 1) p implies q 2) q implies p 3) p implies q or q implies p 4) If p implies q then q implies p
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Mathematical Logic
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Kushagra Chatterjee
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mathematicallogic
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1
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2
PGEE 2018
let A and B be two n*n matrices such that they follow commutative property under multiplication operation which of the following follows commutative property 1) $A^{T} B$ 2) $B^{T} A$ 3) $A^{T} B^{T}$ 4) None
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1 hour
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Linear Algebra
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Sayan Bose
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iiithpgee
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3
PGEE 2018
Two trucks are 150 KM apart on the main road, Truck one start and go 25km straight then 15 km right 25 km left and finally turn towards the main road however due to breakage truck two only go 35 km straight what is the total distance between them now? A) 150 KM B) 50 Km C) 65 Km D) 85 Km
answered
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ago
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Mathematical Logic
by
Kushagra Chatterjee
Junior
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827
points)

29
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iiithpgee
mathematicallogic
+1
vote
1
answer
4
PGEE 2018
4 person wearing different hat went to restaurant, they gave there hat to manager, manager has habit of forgetting thing while returning manager gave hat back to each person, probability that none of the person gets there respective hats is ?
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Probability
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rahul sharma 5
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iiithpgee
probability
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2
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5
PGEE 2018
Three person plays a game by tossing a coin, if atleast one of the outcome is different from another end is declared, coins are biased with probability of head is 1/4 what is probability that game ends in first round
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4 hours
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Probability
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rahul sharma 5
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33
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iiithpgee
probability
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1
answer
6
PGEE 2018
If root of equation f(x) is 0 ar x= 3 and X= 3 then root of equation f(x+3) will be at ? A) X= 0 and X=6 B) X=3 and X=3 C) X=6 and X=0; D) X=6 and X= 6
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Set Theory & Algebra
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Akhilesh Singla
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18
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iiithpgee
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7
PGEE 2018
Which of the following tell us which day is on 14th of a particular month I) 17th is on 3rd Saturday II) the last date of the month is on Wednesday A) Only 1 is sufficient B) Only 2 is sufficient C) Both are required D) Both are insufficient
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Mathematical Logic
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Akhilesh Singla
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20
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iiithpgee
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8
PGEE 2018
One one evening sita and gita were sitting in a park with there back facing each other sita was able to see her shadow on left at what direction was gita sitting ? A) NorthEast B) North C) West D) South
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Mathematical Logic
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Vipin Rai
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21
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36
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iiithpgee
mathematicallogic
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1
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9
PGEE 2018
Which of the statement is sufficient to determine children of x 1) Q and U are brothers of T 2) P is the sister of U and S 3) P and T are daughters of X A) 1 and 2 B) 1,2 and 3 C) 2 and 3 D) data insufficient
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6 hours
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Mathematical Logic
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Mk Utkarsh
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mathematicallogic
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2
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10
PGEE 2018
Maximal Independence Number is the cardinality of maximal independence set ( Independence set V of graph G is set in which no vertex of the set have a direct edge between them). 1) Maximal Independence Number of a complete graph is n1 2) Maximal Independence ... Maximal Independence Number of a complete graph is 1 4) Maximal Independence Number of complete graph is $\geq \frac{n}{2}$
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Graph Theory
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abhishekmehta4u
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graphtheory
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1
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11
PGEE 2018
Consider Undirected Graph G having vertex V {A,B,C,D,E} and edge pair as E {AB BD BE AC CE CD} A) Given graph is disconnected B) Given graph is complete C) Given graph has vertex connectivity 2 D) Given graph has edge connectivity 1
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Graph Theory
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16
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iiithpgee
graphtheory
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1
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12
PGEE 2018
Consider function f: N $\rightarrow$ N, where N is a natural number, which of the following function is not one to one but onto A) f(1)=f(2)=1 f(n)=n1 B) 2n C) $n^{2}$
answered
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Set Theory & Algebra
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abhishekmehta4u
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23
views
iiithpgee
functions
0
votes
1
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13
PGEE 2018
Which of the following statement is true? 1) Exactly one of the statement is false 2) Exactly two statements are false 3) Exactly three statements are false 4) Exactly four statements are false A) II B) !V C) III D) I
answered
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Mathematical Logic
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Akhilesh Singla
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13
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mathematicallogic
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14
General Math
What is value of $\log _{2}10$? In general calculator $\ln _{2}10$ is giving 2.3.... But it should be 3. something right?
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Calculus
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srestha
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40
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discretemathematics
general
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15
Number theory
Why does a perfect square number have odd number of factors?
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Mathematical Logic
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numbertheory
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16
ISRO 2013 Polynomials [EE]
The unique polynomial P(x) of degree 2 such that: P(1) = 1, P(3) = 27, P(4) = 64 is a) 8x2 19x + 12 b) 8x2 + 19x + 12 c) 8x2 19x + 12 d) 8x2 19x  12
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Linear Algebra
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sampurnanand mishra
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123
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193
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isro
isroee
engineeringmathematics
0
votes
2
answers
17
ISRO 2013 Integration [EE]
The integrating factor of equation sec 2 y dy/dx + x tan y = x3 is a) [e]x^2/2 b) [e] x^2/2 c) [e]x/2 d) [e]x/2
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1 day
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Calculus
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sampurnanand mishra
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123
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186
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isro
isroee
engineeringmathematics
0
votes
2
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18
ISRO 2013 Functions [EE]
The minimum point of the function (x3 /3) x is at a) x= 1 b) x = 1 c) x = 0 d) x = 1/ √ 3
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1 day
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in
Calculus
by
sampurnanand mishra
(
123
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140
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isro
isroee
engineeringmathematics
+4
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2
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19
ISRODEC20179
The function $f:[0,3]\rightarrow [1,29]$ defined by $f(x)=2x^{3}15x^{2}+36x+1$ is injective and surjective surjective but not injective injective but not surjective neither injective nor surjective
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Set Theory & Algebra
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abhishekmehta4u
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905
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isrodec2017
0
votes
1
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20
Self doubt
There are 10 different balls in such way that 6 balls are white and 4 balls are black. How many different arrangements are possible such way that black ball placed before the white ball ?
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Linear Algebra
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Subarna Das
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32
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engineeringmathematics
discretemathematics
+1
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1
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21
UGC NET NOV 2017 PAPER II Q9
9. Negation of the proposition › x H(x) is : (1) › x ¬ H(x) (2) ∀ x ¬ H(x) (3) ∀ x H(x) (4) ¬ x H(x)
answered
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Mathematical Logic
by
Pradip Tilala
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43
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103
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ugcnetnov2017ii
0
votes
3
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22
ISRODEC20176
The proposition $(P\Rightarrow Q)\wedge (Q\Rightarrow P)$ is a Tautology Contradiction Contingency Absurdity
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2 days
ago
in
Mathematical Logic
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abhishekmehta4u
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702
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isrodec2017
+2
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3
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23
Probability Practice
Six balls are to be randomly chosen from an urn containing 8 red, 10 green, and 12 blue balls. What is the probability at least one red ball, one blue and one green ball is chosen?
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Probability
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Subarna Das
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probability
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1
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24
Set system and linear algebra
We have $m$ sets $A_1,A_2,A_3 \text{ to } A_m$. All $A_i \subseteq [n]$ where $ [n] = \{1,2,3, \dots n \}.$ Given that $A_i = \text{odd number}$ and $A_i \cap A_j = \text{even number }\forall i \neq j$. Show that $m \leq n$.
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in
Set Theory & Algebra
by
Sachin Mittal 1
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15.5k
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133
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sets
linearalgebra
0
votes
3
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25
ISRODEC20176
The proposition $(P\Rightarrow Q)\wedge (Q\Rightarrow P)$ is a Tautology Contradiction Contingency Absurdity
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in
Probability
by
Subarna Das
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39
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propositionallogic
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0
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26
Probability
murder takes place in an isolated village with 500 inhabitants. The police believe that red polyester fibers will have been transferred on to the murderer's clothes during the assault. Forensic experiments reveal that a probability of 0.9 can be assigned to such a transfer while the ... (a) P(guilt fibers present) (b) P(fibresguilt) (c) P(fibers) (d) P(guilt and fibers present).
[closed]
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in
Mathematical Logic
by
Abhi Girin
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419
points)

58
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probability
conditionalprobability
0
votes
1
answer
27
Partial ordering
Is partial ordering and hasse diagram stuffs present in GATE 2019 Syllabus. Because topological order is already there in algorithems. Can anybody plz provide topic wise GATE 2019 Syllabus i am not getting it topic wise. Thanku in advance
answered
3 days
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in
Mathematical Logic
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sonveer tomar 1
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891
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20
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nooftopologicalordering
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1
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28
IIT Kanpur Sample Test Paper
Given an undirected graph with vertices as your friends and edges between people who do not talk to each other. Your task is to invite as many guests to your party such that there are no two friends at the party who have problem talking to each ... instance of: A. Maximum vertex cover. B. Maximum cut. C. Maximum eigenvalue of adjacency matrix. D. None of the above.
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4 days
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in
Graph Theory
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Mk Utkarsh
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11.9k
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53
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iitkanpur
writtentest
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1
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29
CMI2010A06
A simple graph is one with no selfloops or multiple edges. Among the simple graphs with n vertices and at most 20n − 3 edges: There is always a graph with all vertices connected to at least 42 other vertices. For all such graphs the number of ... for some constant $c < 1$. There are no graphs with each vertex connected to at most 38 other vertices. None of the above
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Mk Utkarsh
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86
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cmi2010
graphtheory
+2
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2
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30
Sheldon Ross A first course in Probability
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Probability
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probability
sheldonross
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31
#Pigeonhole Principle Doubt
How many positive integers not exceeding 1000 are divisible by 7? So, the doubt here is why we are taking floor function while calculating this .
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Combinatory
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pegionhole
#counting
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32
ISI200430
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jjayantamahata
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30
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0
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33
ISI200430
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37
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34
definite integration
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Calculus
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59
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35
CMI2017B5
An undirected graph is connected if, for any two vertices {u, v} of the graph, there is a path in the graph starting at u and ending at v. A tree is a connected, undirected graph that contains no cycle. (a) A leaf in a tree is a vertex that has degree 1. Prove that ... that is, u ∈ V1 and v ∈ V2 or vice versa. Prove that if G is a tree with at least two vertices, then G is bipartite.
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Graph Theory
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Mk Utkarsh
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85
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cmi2017
graphtheory
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36
linear algebra
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43
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37
probability
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Prince Sindhiya
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57
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38
ISI200416
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Kushagra Chatterjee
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15
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0
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39
Propositional logic
Sagar will marry Sheela only if She is a graduate and a good cook. Which is True ? 1.Sheela is a good cook but not a graduate hence Sagar will not marry sheela. 2.Sagar will marry sheela since she is a good cook though she is not a graduate. 3 ... and a good cook implies Sagar will marry Sheela 4.Sagar did not marry Sheela implies that she is neither a graduate nor a good cook.
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Mathematical Logic
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40
Narsingh Deo Problem 228
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Kushagra Chatterjee
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graphtheory
narsingh
deo
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