Question
In how many distinct ways can the digits in the number 9,400,000 be arranged?
Answers
oobleck
read up on permutations with duplicates.
There are 7 digits, so there are 7! ways to arrange them.
But the 5 zeroes can be shuffled in 5! ways that look exactly alike.
So, there are 7!/5! = 42 distinguishable ways to do it.
There are 7 digits, so there are 7! ways to arrange them.
But the 5 zeroes can be shuffled in 5! ways that look exactly alike.
So, there are 7!/5! = 42 distinguishable ways to do it.
Nayely Hernandez
I think it’s 7