║⊕QUESTION⊕║
Mathematics is the sister, as well as the servant, of the arts and is touched with the same madness and genius.
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CLASS 11
PERMUTATIONS AND COMBINATIONS
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In how many ways can 6 boys and 5 girls be arranged for a group photograph of the girls are to sit on chairs in a row and the boys are to stand, in a row behind them?
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Answered by
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Step-by-step explanation:
The five girls can be arranged in 5! ways.
-G-G-G-G-G-G
Now if you observe you have six space(-) between them.
The row behind the girls will also have 6 gaps. So six boys in six gaps in 6! ways.
Total= 5!×6! ways
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