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 2 of 9.
Dadasaheb Maske said:
7 years ago
Explain
(1)
Parthiban said:
8 years ago
LEADER : totally 6 words so= 6!.
L1, E2, A1, D1, R1 so= 1!*2!*1!*1!*1!.
6!=6*5*4*3*2*1=720.
1!*2!*1!*1!*1!= (1*1) (2*1) (1*1) (1*1) (1*1)=2.
Total words=720/2=360.
L1, E2, A1, D1, R1 so= 1!*2!*1!*1!*1!.
6!=6*5*4*3*2*1=720.
1!*2!*1!*1!*1!= (1*1) (2*1) (1*1) (1*1) (1*1)=2.
Total words=720/2=360.
(1)
Shivaraj kavalaga said:
9 years ago
@Savitri and @Divya.
Don't go that method because you'll get big confusion in solving big problems.
Don't go that method because you'll get big confusion in solving big problems.
Vinny said:
1 decade ago
LEADER contains 6 letters.
So 2 are similar letters.
Therefore 6!/2!=360.
So 2 are similar letters.
Therefore 6!/2!=360.
Vamshi said:
8 years ago
They didn't ask without repetition? Then why you divided by 2?
Ezaz Ahmed said:
8 years ago
Thanks for giving the explanation of the answer.
Shekhar said:
8 years ago
In how many ways can the letters of the word 'DIRECTOR', be arranged so that the vowels are never together? Please solve this.
Gowtham said:
8 years ago
@Khan.
The word SAMPLE has 6 letters so we apply the formula in 6!= 720 ways can we arranged.
Am I Right?
The word SAMPLE has 6 letters so we apply the formula in 6!= 720 ways can we arranged.
Am I Right?
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?
Khan said:
9 years ago
In how many ways the letter of the word SAMPLE be arranged if all the latter are taken?
Please slove with formula.
Please slove with formula.
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