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Brian123

Could the question also mean that the vowels remain fixed in their places? If thats the case the answer would be 60. I understand your POV as well, but I feel it would be clearer if it said something like vowels's relative position to the consonants is fixed.


Order normally means position. If the vowels were to remain in the same position as they were, then the question would have made that clear.

For eg it would or should have stated that the order of the vowels and the Vowels remain unchanged.


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Brian123

Could the question also mean that the vowels remain fixed in their places? If thats the case the answer would be 60. I understand your POV as well, but I feel it would be clearer if it said something like vowels's relative position to the consonants is fixed.


Order normally means position. If the vowels were to remain in the same position as they were, then the question would have made that clear.

For eg it would or should have stated that the order of the vowels and the Vowels remain unchanged.


Arun Kumar

The highlighted part is what lead me to the believe that the vowels would remain fixed. Also, I'm pretty sure I've seen a question which said that "the vowels's relative position to the consonants is fixed".
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M U L T I P L E, has 8 letters, with 5 consonants (L repeated twice) and 3 Vowels.

The Vowels in the 2nd, 5th and 7 places. These can be arranged in 3! = 6 ways.

The remaining 5 consonants can be arranged in 5!/2! = 5 * 4 * 3 = 60 ways


The total number of ways = 6 * 60 = 360


Option C

Arun Kumar


You're right, no changing the order of the vowels means that U I E should be in the same order, but can have different positions. The answer in this case will not be 60 or 3360. Have made the relevant changes in the post.


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Vowels together but order same: MLTPL(UIE) = 6! /2! = 720 / 2 = 360 ['L' being twice so 2!]

Answer C
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MathRevolution

Your method indicates option C (360) but you have chosen E (3360). What is the correct answer?

If it is E then what is the correct approach? Am I missing something?

Quote:
Vowels together but order same: MLTPL(UIE) = 6! /2! = 720 / 2 = 360 ['L' being twice so 2!]

Answer E
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It looks like the question can be interpreted in many ways. Perhaps the author/source/experts can decide how to proceed with this.
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Question says that without changing the vowels. So separate the vowels from the word.
MLTPL(consonants) UIE(vowel)

Now there are 5 consonants, in which L is repeated 2 times.
Similarly, we can consider UIE as 1 unit of vowel only, as we cannot shuffle this.

Hence total 5 consonants + 1 vowel = 6.

6!/2! = 360

Therefore ans should be C

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Brian123

Could the question also mean that the vowels remain fixed in their places? If thats the case the answer would be 60. I understand your POV as well, but I feel it would be clearer if it said something like vowels's relative position to the consonants is fixed.


Order normally means position. If the vowels were to remain in the same position as they were, then the question would have made that clear.

For eg it would or should have stated that the order of the vowels and the Vowels remain unchanged.


Arun Kumar

The highlighted part is what lead me to the believe that the vowels would remain fixed. Also, I'm pretty sure I've seen a question which said that "the vowels's relative position to the consonants is fixed".

The question only talks about the relative order of vowels, not their position. The question that you are referring to is here: https://gmatclub.com/forum/in-how-many- ... 48806.html
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rsrighosh
MathRevolution

Your method indicates option C (360) but you have chosen E (3360). What is the correct answer?

If it is E then what is the correct approach? Am I missing something?

Quote:
Vowels together but order same: MLTPL(UIE) = 6! /2! = 720 / 2 = 360 ['L' being twice so 2!]

Answer E


Hello,

Thank you for catching that typo error. I have made the changes. Answer si C - 360.

Thanks
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Here is what I did:

(1) There are 8! ways we can rearrange the letters. Since "L" appears twice, the total number will -> 8!/2!

(2) I determined the number of ways the vowels can be rearranged. Since there are 3 vowels, therefore, there are 3! ways these vowels can be rearranged.

Since we do not want the vowels to be rearranged, therefore, we can say that 1 out of 3! times the vowels will NOT be rearranged. So we multiply 1/3! to the total of ways we can rearrange the letters.

-> 8!/3!2! -> 3360
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MathRevolution
rsrighosh
MathRevolution

Your method indicates option C (360) but you have chosen E (3360). What is the correct answer?

If it is E then what is the correct approach? Am I missing something?

Quote:
Vowels together but order same: MLTPL(UIE) = 6! /2! = 720 / 2 = 360 ['L' being twice so 2!]

Answer E


Hello,

Thank you for catching that typo error. I have made the changes. Answer si C - 360.

Thanks
MathRevolution

OA is E.
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