Hi, I am currently learning Grade 12 Data Management online and I have come across a few questions that I am stuck on.
They are:
Solve for n where:
a) n! divided by (n - 2)! = 930 (4 marks)
b) P(n,5) = 42 x P (n, 3) (5 marks)
21. a) From the word parallel ...
a) How many arrangements can be formed from all the letters in the word parallel?
My answer:
8! divided by 3! 2! = 3360 (because there are 8 letters total, divided by 3 of the same letter 'L' and 2 of the same letter 'A')
b) In how many of these arrangements will the 3 "l's" be together?
If someone could help me that would be greatly appreciated!!
