How many different arrangements can be made with the letters in the word ZEBRA?
2 Answers
Explanation:
The word ZEBRA has 5 letters.
So when considering the different arrangements, we have five choices for the first letter, four for the second, three for the third, etc.
So
Explanation:
We can approach this types of problems in this way:
For this there are five spaces to fill the letters
We can say you can place one of these letters in the first spaces, there are 5 possibilities for first space
Then there are 4 possibilities to fill the second space, as one has already been used for the first space
Then there are 3 possibilities to fill the the third
and so on...
We just multiples together:
In general, if we have
There will be
This is also know as
So if we wanted to find the numbers of arrangements for ABCDEFGHI
There are 9 different letters, hence