Aptitude - Permutation and Combination - Discussion
Discussion Forum : Permutation and Combination - General Questions (Q.No. 5)
5.
In how many ways can the letters of the word 'LEADER' be arranged?
Answer: Option
Explanation:
The word 'LEADER' contains 6 letters, namely 1L, 2E, 1A, 1D and 1R.
 Required number of ways = |
6! | = 360. |
| (1!)(2!)(1!)(1!)(1!) |
Video Explanation: https://youtu.be/2_2QukHfkYA
Discussion:
84 comments Page 5 of 9.
Veenita said:
1 decade ago
First the word letter it can come in 5 different ways and the word letter have 6 words.
Rohan said:
1 decade ago
It is asking how many way not how many different ways.
So, answer should be 6! = 720.
So, answer should be 6! = 720.
Vikram said:
1 decade ago
360 is the correct answer because "C" is repeated
6!/2! = 6*5*4*3 = 360.
6!/2! = 6*5*4*3 = 360.
Ashwini said:
1 decade ago
Hi @Pavithra the word LEADER has repeated letter 'E' twice so 6!/2! = 6*5*4*3 = 360.
Sankari said:
1 decade ago
In how many ways ELECTION can be arranged so that the vowels occupy the odd places.
Prakash said:
9 years ago
Why we use permutation formula in this example?
Is there any way to solve this?
Is there any way to solve this?
Kelvin esekon said:
10 years ago
The word as 6 letters, the letter e is repeated twice, so:
npr = 6!/2! = 360.
npr = 6!/2! = 360.
Thokie said:
1 decade ago
There are 9 switches in a fuse box, how many different arrangements are there?
Anil said:
9 years ago
Total letters-6!
And repeated letters 2 so-2!
Then 6!/2! = 360 right answer.
And repeated letters 2 so-2!
Then 6!/2! = 360 right answer.
Umakant said:
1 decade ago
In this Method
6*5*4*3*2*1=720
720/2=360
Why divide by 2
Please explain it
6*5*4*3*2*1=720
720/2=360
Why divide by 2
Please explain it
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