How many different combinations can be made using the : PS Archive
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# How many different combinations can be made using the

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01 Nov 2006, 03:20
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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.
VP
Joined: 25 Jun 2006
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01 Nov 2006, 05:40
yes. 48.

it can't be "combination" in the stem. it must have been permutation.
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01 Nov 2006, 07:59
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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01 Nov 2006, 14:01
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.
01 Nov 2006, 14:01
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