[" Six boys and six girls along a line "...

[" Six boys and six girls along a line "],[" alternately in "x" ways ";" and along a circle "],[" again alternately in "y" ways,then "],[[" (A) "x,=y],[" (B) "y,=12x],[" (C) "x,=10y],[" (D) "x,=12y]]

A

x=y

B

y=12x

C

x=10y

D

x=12y

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The correct Answer is:

D

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