2 Answers | Add Yours
Again, this is a strange question. In the case of permutations, the order matters. So, AB is different from BA.
However, in this case, it is asking how many permutations of 1 letter are there in a total of 6 letters.
Of course, there are 6.
Permutation is an ordered arrangement of objects. For example there are 2 numbers 4 and 6, these can be arranged in 2 ways i.e 46 and 64.
Each arrangement is a permutation, hence there are 2 permutations in the above example.
As cburr said the (6,1) part is definitely strange, if you're asking for the number of permutations of 6 different objects taken 1 at a time than the answer to 6P1 is 6.
If you still want to apply the permutation formula then here it is:
Where n= 6 (different objects)
r= 1 (number of times)
= 6 Answer.
When different objects are taken only one at a time then the answer will always be the same as the number of objects. If they are taken more than once then this formula is applied.
We’ve answered 301,096 questions. We can answer yours, too.Ask a question