Math Is Fun Forum

finitehelp

Member

Registered: 2009-06-21

Posts: 80

Problem help!

Solve the problem.

How many different three-number "combinations" are possible on a combination lock having 23 numbers on its dial? Assume that no numbers repeat. (Combination locks are really permutation locks.)

Evaluate the combination
(8)
(1)

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Problem help!

How many different three-number "combinations" are possible on a combination lock having 23 numbers on its dial? Assume that no numbers repeat. (Combination locks are really permutation locks.)

Last edited by bobbym (2009-07-25 08:18:01)

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

finitehelp

Member

Registered: 2009-06-21

Posts: 80

Re: Problem help!

thanks bobby m.

the second problem i dont know if i set it up right but its 8 over 1 in parenthesis

soroban

Member

Registered: 2007-03-09

Posts: 452

Re: Problem help!

.