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How many different combinations can be made using the

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Intern
Joined: 11 Sep 2006
Posts: 41

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01 Nov 2006, 04:20
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How many different combinations can be made using the letters of B E G I N and the combinations must start with a vowel.

i dont remem the answer choices.

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VP
Joined: 25 Jun 2006
Posts: 1161

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01 Nov 2006, 06:40
yes. 48.

it can't be "combination" in the stem. it must have been permutation.

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Intern
Joined: 01 Jan 2006
Posts: 28

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01 Nov 2006, 08:59
five places to fill

X X X X X

first place can be filled by E AND I hence 2
Second place cane be filled by 4 other letters
Third place can be filled by 3 letters
Fourth place can be filled by 2 letters

2X4X3X2

48

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Manager
Joined: 29 Aug 2006
Posts: 156

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01 Nov 2006, 15:01
First Letter can be filled by vowels E or I in 2 ways.
The other 4 places can be filled by any of the remaining 4 letters in 4! ways.
Hence the number of possibilities= 2* 4!= 48.

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01 Nov 2006, 15:01
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