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Recent questions tagged inclusion-exclusion

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UGC NET CSE | October 2020 | Part 2 | Question: 1
The number of positive integers not exceeding $100$ that are either odd or the square of an integer is _______ $63$ $59$ $55$ $50$

go_editor asked in Set Theory & Algebra Nov 20, 2020

2.4k views

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4 answers

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NIELIT 2017 DEC Scientist B - Section B: 46
The number of integers between $1$ and $500$(both inclusive) that are divisible by $3$ or $5$ or $7$ is _________. $269$ $270$ $271$ $272$

Lakshman Patel RJIT asked in Set Theory & Algebra Mar 30, 2020

by Lakshman Patel RJIT

620 views

3 votes

2 answers

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UGC NET CSE | June 2019 | Part 2 | Question: 3
How many bit strings of length ten either start with a $1$ bit or end with two bits $00$ ? $320$ $480$ $640$ $768$

Arjun asked in Combinatory Jul 2, 2019

by Arjun

4.3k views

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2 answers

4

Rosen 7e Exercise-8.5 Question-15 page no-558 Inclusion-Exclusion
How many permutations of the 10 digits either begin with the 3 digits 987, contain the digits 45 in the fifth and sixth positions, or end with the 3 digits 123?

aditi19 asked in Combinatory May 24, 2019

692 views

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0 answers

5

Combinatorics
I think the correct answer must be (C). Please let me know what's correct. Inclusion-exclusion principle is used.

Ayush Upadhyaya asked in Combinatory Oct 29, 2018

by Ayush Upadhyaya

252 views

0 votes

0 answers

6

Inclusion-Exclusion
$N$ people toss their hat into a bin, randomly shuffled, returned one hat to each person. What is the probability that $5$th person got his own hat?

srestha asked in Probability Oct 4, 2018

401 views

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0 answers

7

Kenneth Rosen Edition 6th Exercise 6.6 Question 5 (Page No. 457)
Find the number of primes less than 200 using the principle of inclusion–exclusion.

sushmita asked in Combinatory Sep 22, 2018

1.0k views

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inclusion exclusion principle
In how many ways can we arrange the letters in the word '' ARRANGEMENT" such that 1.) there are exactly 2 consecutive same letters . 2.) atleast 3 consecutive same letters .

sushmita asked in Combinatory Sep 22, 2018

618 views

0 votes

4 answers

9

Kenneth Rosen Edition 6th Exercise 6.6 Question 11 (Page No. 457)
In how many different ways can seven different jobs be assigned to four different employees so that each employee is assigned at least one job and the most difficult job is assigned to the best employee? I got the first ... 4 elements. But how to deal with the second part that most difficult job is assigned to the best employee?

Ayush Upadhyaya asked in Combinatory Jun 28, 2018

by Ayush Upadhyaya

1.6k views

0 votes

2 answers

10

Kenneth Rosen Edition 6th Exercise 6.6 Question 13 (Page No. 449)
How many bit strings of length eight do not contain six consecutive 0's?

Ayush Upadhyaya asked in Combinatory Jun 26, 2018

by Ayush Upadhyaya

696 views

0 votes

0 answers

11

Discrete Mathematics and its applications - Kenneth Rosen, Counting - Basics of Counting - Exercise 51

Ishan asked in Combinatory May 26, 2017

by Ishan

312 views

2 votes

2 answers

12

Discrete Mathematics Thegatebook
how many positive integers between 50 and 100, (a) divisible by 7 (b) divisible by 11 (c) divisible by 7 and 11?

Lakshman Patel RJIT asked in Combinatory May 7, 2017

by Lakshman Patel RJIT

525 views

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Recent questions tagged inclusion-exclusion