1 row of 180 - 2 rows of 90 - 3 rows of 60 - 4 rows of 45 - 5 rows of 36 - 6 rows of 30 - 9 rows of 20 - 10 rows of 18 - 12 rows of 15 - 15 rows of 12 - 18 rows of 10 - 20 rows of 9 - 30 rows of 6 - 36 rows of 5 - 45 rows of 4 - 60 rows of 3 - 90 rows of 2 - 180 rows of 1 - total of 18 ways within the limits of the question
You cannot do that since 5 rows x 4 trees = 20 trees total. But we have 10 trees to plant!
Two ways only. 4 rows with 25 stamps each or 5 rows with 20 stamps each.
4 rows of 6 columns or 4 columns of 6 rows !
Okay, there are six rows of 4... think about it, six rows of four cubes, that would be like multiplying 6 and 4, which would be 24.
4 Even rows, you'd end up with 2 rows of 3, and another 2 of 2.
1 row of 180 - 2 rows of 90 - 3 rows of 60 - 4 rows of 45 - 5 rows of 36 - 6 rows of 30 - 9 rows of 20 - 10 rows of 18 - 12 rows of 15 - 15 rows of 12 - 18 rows of 10 - 20 rows of 9 - 30 rows of 6 - 36 rows of 5 - 45 rows of 4 - 60 rows of 3 - 90 rows of 2 - 180 rows of 1 - total of 18 ways within the limits of the question
1 row of 100 chairs. 2 rows of 50 chairs. 4 rows of 25 chairs. 5 rows of 20 chairs. 10 rows of 10 chairs. 20 rows of 5 chairs. 25 rows of 4 chairs. 50 rows of 2 chairs. 100 rows of 1 chair. Or you could put them all in one big circle.
You cannot do that since 5 rows x 4 trees = 20 trees total. But we have 10 trees to plant!
Having the same number of students in each row, 80 students can be arranged in 80 rows of 1, 40 rows of 2, 20 rows of 4, 10 rows of 8, and 5 rows of 16.
3.5
Plant them in the shape of a star. The way the five lines (rows) overlap, you only need 10 total.
This is only possible if you allow adding coinsNumber of coins in row x Number of rows = total number of coins5 x 2 = 10 coins4 x 4 = 20 coinsYou would need 10 more coins
Two ways only. 4 rows with 25 stamps each or 5 rows with 20 stamps each.
4 rows of 6 columns or 4 columns of 6 rows !
Put a small pentagon inside a larger pentagon...
1 row of 24 2 rows of 12 3 rows of 8 4 rows of 6 6 rows of 4 8 rows of 3 12 rows of 2 24 rows of 1