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Mr. and Mrs. Lopez have two children. When they get into their family

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Mr. and Mrs. Lopez have two children. When they get into their family  [#permalink]

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New post 26 Mar 2019, 05:32
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Question Stats:

68% (01:05) correct 32% (01:50) wrong based on 28 sessions

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Mr. and Mrs. Lopez have two children. When they get into their family car, two people sit in the front, and the other two sit in the back. Either Mr. Lopez or Mrs. Lopez must sit in the driver's seat. How many seating arrangements are possible?

(A) 4
(B) 12
(C) 16
(D) 24
(E) 48

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Re: Mr. and Mrs. Lopez have two children. When they get into their family  [#permalink]

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New post 26 Mar 2019, 05:41
How do we understand whether children are distinguishable and whether the placement in the back seats matter (whether back left seat is different from back right seat)

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Re: Mr. and Mrs. Lopez have two children. When they get into their family  [#permalink]

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New post 26 Mar 2019, 11:39
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Bunuel wrote:
Mr. and Mrs. Lopez have two children. When they get into their family car, two people sit in the front, and the other two sit in the back. Either Mr. Lopez or Mrs. Lopez must sit in the driver's seat. How many seating arrangements are possible?

(A) 4
(B) 12
(C) 16
(D) 24
(E) 48


for driver seat ; 2c1 and rest seats 3! ways
so total 2c1*3! ; 12
IMO b
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Re: Mr. and Mrs. Lopez have two children. When they get into their family   [#permalink] 26 Mar 2019, 11:39
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Mr. and Mrs. Lopez have two children. When they get into their family

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