There are about 2 sensible reasons. You get 25 chairs tell the 25 people to sit. Tell them to sit on the floor.
Answer:
25 people can be seated in 25! ways (25! is factorial 25, or 25x24x22x21 ....x3x2x1) as the first chair can be filled in 25 ways, the second in 24, the third in 23 and so on. This comes to 1.5511210043 × 1025 different ways
6 ways.
12 ways.
Three different ways.
25
They are: 2.520, 63/25 in its lowest terms, 2 and 13/25 as a mixed number
25 ways. 25 ways. 25 ways. 25 ways.
There are 27 choose 25 ways, which is equivalent to 27! / (25!(27-25)!) = 351 possible different groups of 25 people that can be formed from a total of 27 people.
6 ways.
5 chairs x 5 people = 25 choices
25
25 and over ----------------------------------------------------------------------------------------------- The number of ways is 5x4x3x2x1= 120 ways
12 ways.
Infinitely many. 1+24 is one. 250/10 is another.
An infinite number of ways. The question needs to be more restrictive.
53,130 ways.
(RM = routemaster and RML = long version) RM buses seat 64 (28 Downstairs, 36 Upstairs) RM coaches seat 57 (25 Downstairs, 32 Upstairs) RML buses seat 72 (32 Downstairs, 40 Upstairs) RML coaches seat 65 (29 Downstairs, 36 Upstairs)
Three different ways.