- #1
futb0l
Ten children are arranging themselves in a circle. Calculate the number of ways this can be done if three particular children are NOT to be next to each other.
I did it and got... 9! - 7!3!
However, I got it wrong on the test - I am pretty sure my method is correct.
I did it and got... 9! - 7!3!
However, I got it wrong on the test - I am pretty sure my method is correct.