Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 Re: Help Me ! » How many permutations? » 2012-04-25 19:13:23

Thanks guys. You make me feel rather stupid - it's so easy!!:|

#2 Help Me ! » How many permutations? » 2012-03-08 19:47:21

Pietwol
Replies: 4

I stumbled upon this wonderful site. I used to be able to do calcs about permutations, but not now. Too old. Help me with this one pleaaaase.

Our vehicle reg plates used to have a combination of three alpha and 3 numericals (excl. a,e,i,o and u)eg. BBB 123 (3x21 alpha and 3x10 nums) Now we have three sets of
2 alpa, 2 numbers and 2 alpha again (bb 11 bb) (2x21 alpha, 2x10 nums plus 2x21 alpha)

How the heck do I calculate the number of possible number plates???

Hope to hear from someone!!?

Piet

Board footer

Powered by FluxBB