90000
Two ways only. 4 rows with 25 stamps each or 5 rows with 20 stamps each.
There are 1860480 ways.
Either 5 rows of 7 students - or - 7 rows of 5 students. --------------------------------------------------------- or 1 row of 35 students or 35 rows of 1 student (like in an exam hall)
36
6! = 6 factorial = 1x2x3x4x5x6 = 720
8
4
You can have: 1 row of 36 2 rows of 18 3 rows of 12 4 rows of 9 or 6 rows of 6, so in total there are 5 ways.
Two ways only. 4 rows with 25 stamps each or 5 rows with 20 stamps each.
There are 1860480 ways.
Four ways:1 row with 6 in each row.2 rows with 3 in each row.3 rows with 2 in each row.6 rows with 1 in each row.
2 rows of 18 squares3 rows of 12 squares4 rows of 9 squares6 rows of 6 squares9 rows of 4 squares12 rows of 3 squares18 rows of 2 squares36 rows of 1 squareI would not count "1 row of 36 squares", because you only have a single row that cannot equal another row (there is only one rowafter all). If this is for homework, I would state your reasoning for excluding (or including) that set. Count all the options up, and you have 8 different ways you can arrange the rows with the exclusion.
Either 5 rows of 7 students - or - 7 rows of 5 students. --------------------------------------------------------- or 1 row of 35 students or 35 rows of 1 student (like in an exam hall)
36
6! = 6 factorial = 1x2x3x4x5x6 = 720
18 Chairs into equal rows - 6 x 3 2 x 9 18 x 1
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.