Six boys and 4 girls are to be seated in two separate rows with five chairs each, such that two particular girls are always together and all the girls are not in the same row. In how many ways can they be seated?
-
1]
15 * 7!
-
2]
20 * 8!
-
3]
18 * 7!
-
4]
(16 * 8! – 4! * 6!)
Solution
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