Concept drill
arrangement
GATE Electronics & Communication · Permutations and Combinations · 2020-2020
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All concepts →2020 Q12
The number of ways to seat 5 men and 5 women in a row such that no two women sit together is ______.
mediumanswer key
2020 Q13
The number of ways to arrange 7 books on a shelf such that two particular books are always together is ______.
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2020 Q17
The number of ways to arrange 3 boys and 3 girls in a row such that no two boys sit together is ______.
mediumanswer key