SOLUTION: In the word "COMPUTER", there are 40320 distinct permutations. Among these permutations, how many of them:
a) begin with C and end with R?
b) begin with R and end with C?
Algebra ->
Permutations
-> SOLUTION: In the word "COMPUTER", there are 40320 distinct permutations. Among these permutations, how many of them:
a) begin with C and end with R?
b) begin with R and end with C?
Log On
Question 997217: In the word "COMPUTER", there are 40320 distinct permutations. Among these permutations, how many of them:
a) begin with C and end with R?
b) begin with R and end with C? Answer by Edwin McCravy(20056) (Show Source):
The answers to both (a) and (b) are the same, as they are each
just the distinct permutations of "OMPUTE", which is 6! = 720.
That's because for each of the 720 distinct permutations of
"OMPUTE" you can put a C on the far left and an R on the far
right, or vice-versa.
Edwin
