Aptitude - Permutation and Combination - Discussion
Discussion Forum : Permutation and Combination - General Questions (Q.No. 2)
2.
In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?
Answer: Option
Explanation:
The word 'LEADING' has 7 different letters.
When the vowels EAI are always together, they can be supposed to form one letter.
Then, we have to arrange the letters LNDG (EAI).
Now, 5 (4 + 1 = 5) letters can be arranged in 5! = 120 ways.
The vowels (EAI) can be arranged among themselves in 3! = 6 ways.
Required number of ways = (120 x 6) = 720.
Video Explanation: https://youtu.be/WCEF3iW3H2c
Discussion:
97 comments Page 9 of 10.
Eswaru said:
10 years ago
Hey dude we have to form 7 letter words from LEADING that means we need to use all the letters at a time. So no repetition are allowed.
Mukesh said:
10 years ago
Please anyone help me why repetition is not considered in the current problem?
Yonatan said:
10 years ago
I can't understand the answer.
Palak said:
10 years ago
In this question won't the arrangement of non vowels matter and why?
RAJA said:
10 years ago
Hai @Soumya.
S its 1 letter only. Hope you understand.
S its 1 letter only. Hope you understand.
Soumya sengupta said:
10 years ago
If there is another vowel 'o' what should be done like in 'outstanding' here a, i, o, u are vowels do we have to consider (aiou) = 1 letter for calculation?
Vanmathi said:
10 years ago
In how many ways LEADING be arranged such a way that atleast two vowels always together?
Pavan@9966606261 said:
1 decade ago
@mayur.
You just look when ever you open the new exercise there will be availability of basic formulas. If you go through them half of the task would be finished easily. Have a good day buddy.
You just look when ever you open the new exercise there will be availability of basic formulas. If you go through them half of the task would be finished easily. Have a good day buddy.
Ajay said:
1 decade ago
In some cases unit's place, tens place's and hundred's place are used what its mean?
Spurthy said:
1 decade ago
All the consonants can also be written as a unit?
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