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 8 of 9.
Fritz said:
1 decade ago
This problem is combination or permutation ?
JONSE said:
9 years ago
6!/2! = 6*5*4*3*2*1/2.
= 720/2.
= 360.
= 720/2.
= 360.
Praveen said:
1 decade ago
We can't divide by 2 may be what not 5!?
Poornima.R said:
1 decade ago
Why we want to divide this 720 by 2?
Pavithra said:
1 decade ago
Why we should take like 6*5*4*3?
Shweta said:
2 decades ago
Why the answer 720 is incorrect?
(1)
Yuvraj k said:
7 years ago
I think the Answer is 720.
Ritu said:
1 decade ago
6*5*4*3*2*1=720
720/2=360
720/2=360
Umakant said:
1 decade ago
Why is wrong 5x4x3x2x1?
Asam said:
7 years ago
Please explain this.
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