Login
Register
Dark Mode
Brightness
Profile
Edit Profile
Messages
My favorites
My Updates
Logout
Recent questions tagged tifr2012
24
votes
2
answers
31
TIFR CSE 2012 | Part A | Question: 10
In how many different ways can $r$ elements be picked from a set of $n$ elements if Repetition is not allowed and the order of picking matters? Repetition is allowed and the order of picking does not matter? $\frac{n!}{\left(n - r\right)!}$ ... $\frac{n!}{\left(n - r\right)!}$, respectively. $\frac{n!}{r!}$ and $\frac{r!}{n!}$, respectively.
In how many different ways can $r$ elements be picked from a set of $n$ elements if Repetition is not allowed and the order of picking matters? Repetition is allowed and ...
makhdoom ghaya
2.5k
views
makhdoom ghaya
asked
Oct 30, 2015
Combinatory
tifr2012
combinatory
counting
normal
+
–
13
votes
2
answers
32
TIFR CSE 2012 | Part A | Question: 9
The probability of throwing six perfect dices and getting six different faces is $1 -\dfrac{ 6!} { 6^{6}}$ $\dfrac{6! }{ 6^{6}}$ $6^{-6}$ $1 - 6^{-6}$ None of the above
The probability of throwing six perfect dices and getting six different faces is$1 -\dfrac{ 6!} { 6^{6}}$$\dfrac{6! }{ 6^{6}}$$6^{-6}$$1 - 6^{-6}$None of the above
makhdoom ghaya
1.7k
views
makhdoom ghaya
asked
Oct 26, 2015
Probability
tifr2012
probability
+
–
40
votes
2
answers
33
TIFR CSE 2012 | Part A | Question: 8
How many pairs of sets $(A, B)$ are there that satisfy the condition $A, B \subseteq \left\{1, 2,...,5\right\}, A \cap B = \{\}?$ $125$ $127$ $130$ $243$ $257$
How many pairs of sets $(A, B)$ are there that satisfy the condition $A, B \subseteq \left\{1, 2,...,5\right\}, A \cap B = \{\}?$$125$$127$$130$$243$$257$
makhdoom ghaya
3.2k
views
makhdoom ghaya
asked
Oct 26, 2015
Set Theory & Algebra
tifr2012
set-theory&algebra
set-theory
+
–
24
votes
6
answers
34
TIFR CSE 2012 | Part A | Question: 7
It is required to divide the $2n$ members of a club into $n$ disjoint teams of $2$ members each. The teams are not labelled. The number of ways in which this can be done is: $\frac{\left ( 2n \right )!}{2^{n}}$ $\frac{\left ( 2n \right )!}{n!}$ $\frac{\left ( 2n \right )!}{2^n . n!}$ $\frac{n!}{2}$ None of the above
It is required to divide the $2n$ members of a club into $n$ disjoint teams of $2$ members each. The teams are not labelled. The number of ways in which this can be done ...
makhdoom ghaya
4.7k
views
makhdoom ghaya
asked
Oct 26, 2015
Combinatory
tifr2012
combinatory
balls-in-bins
+
–
9
votes
2
answers
35
TIFR CSE 2012 | Part A | Question: 6
A certain pair of used shoes can be repaired for $Rs.1250$ and will last for $1$ year. A pair of the same kind of shoes can be purchased new for $Rs.2800$ and will last for $2$ years. The average cost per year of the new shoes is what percent greater than the cost of repairing the used shoes? $5%$ $12%$ $15%$ $3%$ $24%$
A certain pair of used shoes can be repaired for $Rs.1250$ and will last for $1$ year. A pair of the same kind of shoes can be purchased new for $Rs.2800$ and will last f...
makhdoom ghaya
985
views
makhdoom ghaya
asked
Oct 26, 2015
Quantitative Aptitude
tifr2012
cost-market-price
+
–
5
votes
2
answers
36
TIFR CSE 2012 | Part A | Question: 5
What is the maximum number of points of intersection between the diagonals of a convex octagon (8-vertex planar polygon)? Note that a polygon is said to be convex if the line segment joining any two points in its interior lies wholly in the ... between diagonals that lie in the interior of the octagon are to be considered for this problem. 55 60 65 70 75
What is the maximum number of points of intersection between the diagonals of a convex octagon (8-vertex planar polygon)? Note that a polygon is said to be convex if the ...
makhdoom ghaya
1.2k
views
makhdoom ghaya
asked
Oct 26, 2015
Quantitative Aptitude
tifr2012
quantitative-aptitude
geometry
+
–
3
votes
1
answer
37
TIFR CSE 2012 | Part A | Question: 4
Let $\text{ABC}$ be a triangle with $\text{n} $ distinct points inside. A triangulation of $\text{ABC}$ with respect to the $\text{n}$ points is obtained by connecting as many points as possible, such that no more line segments can be added without intersecting other line segments. In ... with $n$ points inside it? $3n - 1$ $n^{2} + 1$ $n + 3$ $2n + 1$ $4n - 3$
Let $\text{ABC}$ be a triangle with $\text{n} $ distinct points inside. A triangulation of $\text{ABC}$ with respect to the $\text{n}$ points is obtained by connecting as...
makhdoom ghaya
917
views
makhdoom ghaya
asked
Oct 26, 2015
Quantitative Aptitude
tifr2012
quantitative-aptitude
geometry
+
–
26
votes
3
answers
38
TIFR CSE 2012 | Part A | Question: 3
Long ago,in a planet far far away, there lived three races of intelligent inhabitants: the blues (who always tell the truth), the whites (who always lie), and the pinks (who, when asked a series of questions, start with a lie and then tell the truth and lie ... Blue, $C$ is Pink. $A$ is White, $B$ is Pink, $C$ is Blue. Cannot be determined from the above data.
Long ago,in a planet far far away, there lived three races of intelligent inhabitants: the blues (who always tell the truth), the whites (who always lie), and the pinks (...
makhdoom ghaya
2.3k
views
makhdoom ghaya
asked
Oct 26, 2015
Mathematical Logic
tifr2012
mathematical-logic
propositional-logic
+
–
33
votes
5
answers
39
TIFR CSE 2012 | Part A | Question: 2
If $Mr.M$ is guilty, then no witness is lying unless he is afraid. There is a witness who is afraid. Which of the following statements is true? (Hint: Formulate the problem using the following predicates $G - Mr.M$ is guilty $W(x) - x$ ... guilty. From these facts one cannot conclude that $Mr.M$ is guilty. There is a witness who is lying. No witness is lying.
If $Mr.M$ is guilty, then no witness is lying unless he is afraid. There is a witness who is afraid. Which of the following statements is true?(Hint: Formulate the proble...
makhdoom ghaya
4.4k
views
makhdoom ghaya
asked
Oct 25, 2015
Mathematical Logic
tifr2012
mathematical-logic
first-order-logic
+
–
20
votes
11
answers
40
TIFR CSE 2012 | Part A | Question: 1
Amar and Akbar both tell the truth with probability $\dfrac{3 } {4}$ and lie with probability $\dfrac{1}{4}$. Amar watches a test match and talks to Akbar about the outcome. Akbar, in turn, tells Anthony, "Amar told me that India won". What ... $\left(\dfrac{7}{16}\right)$ $\left(\dfrac{10}{16}\right)$ None of the above
Amar and Akbar both tell the truth with probability $\dfrac{3 } {4}$ and lie with probability $\dfrac{1}{4}$. Amar watches a test match and talks to Akbar about the outco...
makhdoom ghaya
9.4k
views
makhdoom ghaya
asked
Oct 25, 2015
Probability
tifr2012
probability
conditional-probability
+
–
Page:
« prev
1
2
Email or Username
Show
Hide
Password
I forgot my password
Remember
Log in
Register