2006-09-20 08:14:23 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
This is a permutation because all five people are distinct and considered different in the statement of the problem. All the answeres who said 120 are correct.
If we instead had a twin and a triplet, and nobody could tell the twins apart and nobody could tell the triplets apart, it would be a different problem involving combinations. For example, all the permutations in which the twins are in positions 1 and 4 would look identical (be identical) if those people were in positions 4 and 1 instead.
2006-09-20 08:21:30 · answer #1 · answered by ? 6 · 0⤊ 0⤋
Permutation
2006-09-20 08:16:53 · answer #2 · answered by Sree 3 · 0⤊ 0⤋
It is a permutation
First place in line is filled in 5 ways
Second place in line is filled in 4 ways
Third place in line is filled in 3 ways
Fourth place in line is filled in 2 ways
Fifth place in line is filled in 1 ways
Therefore number of ways people arranged in line are =5x4x3x2x1 =120 ways
2006-09-20 08:21:01 · answer #3 · answered by Amar Soni 7 · 0⤊ 0⤋
it is permutation
by fundamental principle of counting it is 5*4*3*2*1 or 5!=120
2006-09-20 08:19:25 · answer #4 · answered by raj 7 · 0⤊ 0⤋
I think you can calculate it by using factorials
5*4*3*2*1=120 ways
2006-09-20 08:16:44 · answer #5 · answered by bmaldon04 2 · 0⤊ 0⤋
this is permutation.five people can be arranged in five factorial ways.
2006-09-20 08:23:41 · answer #6 · answered by jchampak 1 · 0⤊ 0⤋
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2006-09-20 08:16:23 · answer #7 · answered by AHMED 3 · 0⤊ 0⤋