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How many different ways can the front row seats be filled with 20 students if the classroom has 4 rows of seats?
Wiki User
∙ 12y ago
If there are 4 rows of seats for 20 students, then each row must have 5 seats.
20 students can fill 5 seats in (20 x 19 x 18 x 17 x 16) = 1,860,480 different ways.
Wiki User
∙ 12y ago
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