How many different ways can four people stand in line?
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Keywords: Starter
| Investigations
| Probability
On the extension, there are two errors not one!"
Monday, March 12, 2007
Thursday, November 15, 2007
Wednesday, March 12, 2008
Good, achieved the results I required
Satisfactory
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.
This starter has scored a mean of 4.0 out of 5 based on 42 votes.
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There are 24 different ways in which 4 people can stand in line
There are four people who could be first in line. Once that person has been decided there are three people who could be second and so on.
The total is therefore 4 x 3 x 2 x 1
(Sometimes written as 4!)
=24
Extension activities.
Here is a solution to this problem with at least one mistake. Can you spot the mistake(s)?
In how many ways can 5, 10 or 100 people stand in line?
In how many different ways can the letters in the word Transum be arranged?
In how many different ways can the letters in the word Google be arranged?