Question 276489
A Family composed of a father a mother and 3 kids are to be arranged in a row to have their picture taken.
a) In how many ways can this be done?
Ans: 5P5 = 5!/(5-5)! = 5!/0! = 5! = 120
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b) In how many ways can this be done if the father is to be on one end of the picture and the mother on the other?
Arrange father and mother: 2 ways
Arrange the three children: 3! = 6
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Total arrangements = 2*6 = 12
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Cheers,
Stan H.