CA Foundation Exam > CA Foundation Questions > In nPr = n (n–1) (n–2) …...
Start Learning for Free
In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor is
- a)n
- b)r–1
- c)n–r
- d)r
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
In nPr = n (n–1) (n–2) ……………...
Permutation Formula
The permutation formula is used to find the number of ways to arrange a set of objects in a specific order. It is denoted by nPr, where n represents the total number of objects and r represents the number of objects taken at a time. The formula for permutations is:
nPr = n! / (n-r)!
where "!" represents the factorial function.
Explanation
Given, nPr = n (n1) (n2) (nr1)
Here, n represents the total number of objects taken at a time and r represents the number of objects taken at a time.
The formula for permutations is:
nPr = n! / (n-r)!
We can rewrite the given formula as:
nPr = n * n1 * n2 * ... * nr1
Comparing the two formulas, we can see that:
- n represents the total number of objects taken at a time, which is the same as n in the permutation formula
- r represents the number of objects taken at a time, which is the same as the number of factors in the given formula
Therefore, the correct answer is option 'D', which states that the number of factors is r.
The permutation formula is used to find the number of ways to arrange a set of objects in a specific order. It is denoted by nPr, where n represents the total number of objects and r represents the number of objects taken at a time. The formula for permutations is:
nPr = n! / (n-r)!
where "!" represents the factorial function.
Explanation
Given, nPr = n (n1) (n2) (nr1)
Here, n represents the total number of objects taken at a time and r represents the number of objects taken at a time.
The formula for permutations is:
nPr = n! / (n-r)!
We can rewrite the given formula as:
nPr = n * n1 * n2 * ... * nr1
Comparing the two formulas, we can see that:
- n represents the total number of objects taken at a time, which is the same as n in the permutation formula
- r represents the number of objects taken at a time, which is the same as the number of factors in the given formula
Therefore, the correct answer is option 'D', which states that the number of factors is r.
Free Test
FREE
| Start Free Test |
Community Answer
In nPr = n (n–1) (n–2) ……………...
Go through formula
Attention CA Foundation Students!
To make sure you are not studying endlessly, EduRev has designed CA Foundation study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in CA Foundation.
|
Explore Courses for CA Foundation exam
|
|
Similar CA Foundation Doubts
Top Courses for CA FoundationView all
In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer?
Question Description
In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer?.
In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer?.
Solutions for In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for CA Foundation.
Download more important topics, notes, lectures and mock test series for CA Foundation Exam by signing up for free.
Here you can find the meaning of In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In nPr = n (n–1) (n–2) ………………(n–r–1), the number of factor isa)nb)r–1c)n–rd)rCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice CA Foundation tests.
|
|
Explore Courses for CA Foundation exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup