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Ask iit jee aieee pet cbse icse state board experts Expert Question: Exponent of and permutation
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[Post New]27 Sep 2007 10:52:50 IST
    Subject: Exponent of and permutation
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Greatdreams (3220)

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exponent of 2 in 50P10 is
a. 8
b. 9
c. 12
d. 11
 
There are 5 eligible Punjabi grooms of which 3 know Bengali and 5 eligible Bengali grooms of which 2 know Punjabi. There are 5 eligible Punjabi brides and 5 eligible Bengali brides.If an eligible groom is agreeable to marry a girl of his community or knowing her language and brides have no choice, in how many different ways 10 couples can be formed?
Asit das gupta book, page no. A-171, Quesn no 57
Ans : 144000 
__________________________________________________________________________________________________________
From J.R.R. Tolkien's 'The Lord of the Rings':

All that is gold does not glitter
Not all who wander are lost
The old that is strong does not wither,
Deep roots are not reached by frost.
From ashes a fire shall be woken
From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.
    
[Post New]27 Sep 2007 12:19:06 IST
    Subject: Exponent of and permutation
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krishna.gopal (2399)

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Olaaa!! Perrrfect answer. 381  bad job dude!! I dont approve of this answer! 2  [632 rates]
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One question at a time
50P10 is 41*42......50
So number of 2s inthis are
1 for 42
2 for 44
1 for 46
4 for 48
and 1 for 50
So answer is 9
Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi
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[Post New]27 Sep 2007 12:22:48 IST
    Subject: Re:Exponent of and permutation
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Greatdreams (3220)

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Thank you sir what about the next one?
 
__________________________________________________________________________________________________________
From J.R.R. Tolkien's 'The Lord of the Rings':

All that is gold does not glitter
Not all who wander are lost
The old that is strong does not wither,
Deep roots are not reached by frost.
From ashes a fire shall be woken
From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.
 this reply: 0 points  (with 0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
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[Post New]28 Sep 2007 02:32:15 IST
    Subject: Exponent of and permutation
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krishna.gopal (2399)

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Olaaa!! Perrrfect answer. 381  bad job dude!! I dont approve of this answer! 2  [632 rates]
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Great dreams this is a rule of this forum that only one question can be asked at a time. You please ask the next one as seperate question and i will tryt the same
Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi
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