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Numerical Ability
Permutation and Combination
how many ways to arrange a word ORANGE in which vowels are not together
Read Solution (Total 14)
-
- orange-6!=720
(aeo)rng-4!*3!=144(Taking a,e,o combinely as 1)(vowels come together)
(aeo-1,r-2,n-3,g-4)
no. of ways vowels not come together=720-144=576 - 9 years agoHelpfull: Yes(18) No(0)
- _ , R , _ , N , _ , G , _ = 3! for consonants
and
4 places for 3 vowels (o,e,a) = 4P3 ways
so, total = (4P3)*3! = 144 ways in which vowels are not together
- 9 years agoHelpfull: Yes(3) No(1)
- 576 is ans
- 9 years agoHelpfull: Yes(2) No(0)
- 720-2^6=576
- 9 years agoHelpfull: Yes(1) No(0)
- 6!-4!*3!=576
- 9 years agoHelpfull: Yes(1) No(0)
- 6!-(4!*3!)=576
- 9 years agoHelpfull: Yes(1) No(0)
- vowels are not together= 6!- 4!*3!
= 720-144
= 576 - 9 years agoHelpfull: Yes(1) No(0)
- ORANGE = 6!
NO OF VOWELS CAN ARRANGE ITSELF IN= 3! WAYS
NO OF CONSONANTS LEFT =3
NO OF WAYS IN WHICH VOWEL COME TOGETHER
=
( NO OF CONSONANTS + TAKING SET OF VOWEL AS A WHOLE) * NO WAYS IN WHICH VOWEL CAN
ARRANGE ITSELF
= (3+1)! * 3!
4!*3!
144
SO, NO OF WAYS IN WHICH VOWEL CANNOT ARRANGE ITSELF = 6! - 4!3!
= 720 - 144
= 576
- 9 years agoHelpfull: Yes(1) No(0)
- No. of ways in which orange can arrange is 6! =720
no. of ways in which all vowel take together is = 4!*3!
then the no. of ways in which vowel are not comes together is = total no of ways-no. ways comes together
=>6!-4!*3!
=>576 - 8 years agoHelpfull: Yes(1) No(0)
- 3! ways=24
- 9 years agoHelpfull: Yes(0) No(2)
- 36
3 vowels can be arranged in odd positions in 6 ways
and
3 consonants can be arranged in even positions in 6 ways.
so total 6*6= 36 ways
- 9 years agoHelpfull: Yes(0) No(3)
- 576 is ans
- 9 years agoHelpfull: Yes(0) No(0)
- Let ORANGE
we hv one word , in that word 6 letter and no repetation
6! = 720 - 9 years agoHelpfull: Yes(0) No(2)
- orange having a three vowels o,a,e
for solving
combine them into one (oae)rng
now 4p4 = 4! =24
and 3!=6
so that 6*24 = 144
this no. of occansion when they come together
now total occurances are 6! = 36
so we subtract total occurances by occurances where they come together
144-36 =108
- 9 years agoHelpfull: Yes(0) No(2)
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