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Hello can you please help me posted picture of question

Hello can you please help me posted picture of question-example-1
User Pancho
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We are to select 2 people to sit in first row from 6.

This is a problem of Combinations. We are find permutation of 6 people taken 2 at a time. This can be represented as 6C2.


6C2= (6!)/(4!*2!) \\ \\=15

So, the answer is option B
User Peter Bridger
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