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Numerical Ability
Permutation and Combination
How many words can be formed using the letters of the word DAUGHTER, so that all the vowels occurs together?
1)8640 2)2880 3)6720 4)4320
Read Solution (Total 13)
-
- first we arrange the constant letter and take all vowel as one letter so
we have 5 constant and 1 another letter so arrange these 6 letter is = 6!
now arrenge the vowel word = 3!
so total words can be formed = 6! x 3! = 4320 - 4 years agoHelpfull: Yes(11) No(0)
- Total 8 letters
Two groups (Vowels(3) and Consonants(5))
3 vowels can be arranged among themselves in 3! ways
Now treat the vowels as 1 group
And we have 5 individual consonants (Total = 6)
Hence 3! x 6! = 4320 - 4 years agoHelpfull: Yes(2) No(0)
- DAUGHTER
VOWEL=AUE IS 1 UNIT
CONSONANT=DGHTR 2nd UNIT
SO 1+5=6!*3!=4320 - 4 years agoHelpfull: Yes(2) No(0)
- 6! x 3! = 4320
option 4 - 4 years agoHelpfull: Yes(1) No(0)
- Group vowels together then taking all vowels as single letter
6! *3! =4320 - 4 years agoHelpfull: Yes(1) No(0)
- 6!*3!=4320
- 4 years agoHelpfull: Yes(1) No(0)
- 4320 is the right answer
explaination:- we will make all vowel into 1 unit :
6!*3!=4320 - 4 years agoHelpfull: Yes(1) No(0)
- There are 8 letters in the word "Daughter"
In this 3 letters are vowels..
So the remaining letters are 5
All the vowels occurs together ,then 3 vowels are considered as 1 letter
So total 6 letters can be arranged as 6! Ways nd also 3 vowels can be placed 3! Ways.
There for 6!*3!=4320 - 4 years agoHelpfull: Yes(1) No(0)
- 4) 4320
DGHTR(AUE)
6! × 3! = 4320 - 4 years agoHelpfull: Yes(1) No(0)
- 8!/3!=6720 is the answer
- 4 years agoHelpfull: Yes(0) No(11)
- Answer is 4)4320 because as vowels are together so they can be arranged in 3! ways and the other letters can be arranged in 6! ways. So resultant is 6!*3! = 4320.
- 2 years agoHelpfull: Yes(0) No(0)
- 3!*6!=4320
- 2 years agoHelpfull: Yes(0) No(0)
- 8! = 4320
- 5 Months agoHelpfull: Yes(0) No(0)
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