You are to arrange 36 identical chairs in rows such that there is same number of chairs in each row. Each row must contain at least 4 chairs and there must be at least 3 rows. How many different arrangements are possible?
A
4
B
2
C
6
D
5
Correct Answer: 4
4 chairs in 9 rows = 36 chairs 6 chairs in 6 rows = 36 chairs 9 chairs in 4 rows = 36 chairs 12 chairs in 3 rows = 36 chairs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - So, total ways = 4