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permutation and combination  XML
Questions & Discussions » Maths Questions
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Status : Answered but not Reviewed Difficulty Level: - Importance for Exam:  -
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Shivam Rastogi
Joined: 15/08/2008
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there are 15 seats in first row of cinema hall. torchman has instruction that seat no. 6 must be occupied. find no. ways in which 4 seats of 1st row can be alloted so that no 2 of them are consecutive.
 
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sahil sharma
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we make 1 guy sit on 6th seat n thus eliminate 5th,6th , 7th seat from arrangement and then proceed as we did in the binary question
 
 
 
   
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