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?
72
144
360
720
None of these
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 9 of 9.

Rasi said:   4 years ago
Hey guys!

LEADER = 6! =720
(E E) = 2! = 2

Now divide,
720/2 = 360.

Now it is clear right?
(26)

Sandeep Bodamwad said:   4 years ago
Yes, the answer 360 is very correct, because there letter E is repeated. So the whole letters count will be 5. 1+2+3+4+5+ = 360
(1)

Joykhwaka said:   1 year ago
Why are they not treating vowels separately? Anyone please explain.
(3)

Reena said:   1 year ago
Why not consider it as 5!?

Please explain to me.
(2)


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