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Quantitative Aptitude
Line Based Venn Diagram
Find the numb...
Question
Find the number of ways in which
6
boys and
6
girls can be seated in a row so that all the girls sit together and all the boys sit together.
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Solution
Considering boys and girls as two units, the number of permutations is
2
!
×
6
!
×
6
!
=
2
×
(
6
!
)
2
.
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