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husnain

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From: Chichawatni,Pakistan

Registered: 2014-10-03

Posts: 8,129

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Combination Consist:

Question:
A family consist of a grandfather, 5 sons and daughter and 8 grandchildren. They are to be seated in a row for dinner. The grandchildren wish to occupy the 4 seats at each end and the grandfather refuses to have a grandchild on either side of him. The number of ways in which the family can be made to sit is:

Option A):
8! * 240
Option B):
8! * 480
Option C):
21530
Option D):
8! * 360

Correct Answer is Option B):
8! * 480

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