Recent questions tagged permutation-and-combination / GATE Overflow for GATE CSE

0 votes

2 answers

1

Permutations
In how many ways can four letters from COFFEE be picked considering all permutations?

In how many ways can four letters from COFFEE be picked considering all permutations?

mybestie

125 views

mybestie asked Apr 17

0 votes

1 answer

2

Maths StackExchange Combinatorics
How many ways to arrange ABCD such that A precedes B, and C precedes D

How many ways to arrange ABCD such that A precedes B, and C precedes D

Emankashyap

62 views

Emankashyap asked Apr 17

0 votes

1 answer

3

How many 4-digit even numbers can be created?
I know that in unit place we can have 5 cases (0, 2, 4, 6, 8). In the leading position (thousandth place), should zero be allowed? 10 x 10 x 10 x 5 9 x 10 x 10 x 5 (This is what I believe should be the answer) If either of these options are available, then we can choose any one. But what if both of these exists in the exam, then which one is correct?

I know that in unit place we can have 5 cases (0, 2, 4, 6, 8). In the leading position (thousandth place), should zero be allowed?10 x 10 x 10 x 59 x 10 x 10 x 5 (This is...

tbhaxor

96 views

tbhaxor asked Apr 8

0 votes

4 answers

4

GATE DS&AI 2024 | GA Question: 3
How many $4$-digit positive integers divisible by $3$ can be formed using only the digits $\{1,3,4,6,7\}$, such that no digit appears more than once in a number? $24$ $48$ $72$ $12$

How many $4$-digit positive integers divisible by $3$ can be formed using only the digits $\{1,3,4,6,7\}$, such that no digit appears more than once in a number?$24$$48$$...

Arjun

2.0k views

Arjun asked Feb 16

0 votes

4 answers

5

Computer Science - UGC NET 2021 [ Question ID = 2353 ]
How many ways are there to assign 5 different jobs to 4 different employees if every employee is assigned at least 1 job ? 1024 625 240 20

How many ways are there to assign 5 different jobs to 4 different employees if every employee is assigned at least 1 job ?1024 625 240 20

rajeshposts

832 views

rajeshposts asked Sep 17, 2023

0 votes

1 answer

6

Permutations and combination

Çșȇ ʛấẗẻ

92 views

Çșȇ ʛấẗẻ asked Sep 14, 2023

2 votes

2 answers

7

GoClasses Youtube
Determine the Number of $6$ digit integers (no leading zeroes) in which no digit is repeated and its divisible by $4$.

Determine the Number of $6$ digit integers (no leading zeroes) in which no digit is repeated and its divisible by $4$.

Swarnava Bose

469 views

Swarnava Bose asked Aug 16, 2023

2 votes

2 answers

8

GO Classes 2023 | IIITH Mock Test 1 | Question: 60
If $4$ Maths books are selected from $6$ different Maths books and $3$ English books are chosen from $5$ different English books, how many ways can the seven books be arranged on a shelf if a Maths is at the beginning and an English book is in the middle of the shelf $216000$ $218000$ $206000$ $226000$

If $4$ Maths books are selected from $6$ different Maths books and $3$ English books are chosen from $5$ different English books, how many ways can the seven books be arr...

GO Classes

887 views

GO Classes asked Mar 26, 2023

5 votes

2 answers

9

GATE Civil 2021 Set 2 | GA Question: 5
Four persons $P, Q, R$ and $S$ are to be seated in a row. $R$ should not be seated at the second position from the left end of the row. The number of distinct seating arrangements possible is: $6$ $9$ $18$ $24$

Four persons $P, Q, R$ and $S$ are to be seated in a row. $R$ should not be seated at the second position from the left end of the row. The number of distinct seating arr...

go_editor

5.3k views

go_editor asked Mar 1, 2021

4 votes

1 answer

10

GATE Mechanical 2021 Set 2 | GA Question: 1
Five persons $\text{P, Q, R, S}$ and $\text{T}$ are to be seated in a row, all facing the same direction, but not necessarily in the same order. $\text{P}$ and $\text{T}$ ... at the second position from the left end of the row. The number of distinct seating arrangements possible is: $2$ $3$ $4$ $5$

Five persons $\text{P, Q, R, S}$ and $\text{T}$ are to be seated in a row, all facing the same direction, but not necessarily in the same order. $\text{P}$ and $\text{T}$...

go_editor

1.6k views

go_editor asked Mar 1, 2021

6 votes

1 answer

11

GATE Mechanical 2021 Set 1 | GA Question: 10
Five persons $\text{P, Q, R, S and T}$ are sitting in a row not necessarily in the same order. $Q$ and $R$ are separated by one person, and $S$ should not be seated adjacent to $Q.$ The number of distinct seating arrangements possible is: $4$ $8$ $10$ $16$

Five persons $\text{P, Q, R, S and T}$ are sitting in a row not necessarily in the same order. $Q$ and $R$ are separated by one person, and $S$ should not be seated adjac...

gatecse

3.7k views

gatecse asked Feb 22, 2021

3 votes

1 answer

12

GATE Civil 2021 Set 1 | GA Question: 5
Four persons $\text{P, Q, R}$ and $\text{S}$ are to be seated in a row, all facing the same direction, but not necessarily in the same order. $\text{P}$ and $\text{R}$ cannot sit adjacent to each other. $\text{S}$ should be seated to the right of $\text{Q}$. The number of distinct seating arrangements possible is: $2$ $4$ $6$ $8$

Four persons $\text{P, Q, R}$ and $\text{S}$ are to be seated in a row, all facing the same direction, but not necessarily in the same order. $\text{P}$ and $\text{R}$ ca...

Arjun

1.6k views

Arjun asked Feb 19, 2021

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