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#1 2007-06-24 04:54:30

rockysheedy
Member
Registered: 2006-06-11
Posts: 12

5 symbol codes can be formed if first 2 are letters next 3 are digits

How many 5 symbol codes can be formed if first 2 are letters and next 3 are digits?
Topic: - Discrete Mathematics

How many 5-symbol codes can be formed if the first 2 symbols are letters and next 3 are digits but no symbol is repeated?

If possible Please write in the Entire Step by Step answer.

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#2 2007-06-24 05:16:54

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: 5 symbol codes can be formed if first 2 are letters next 3 are digits

rockysheedy wrote:

If possible Please write in the Entire Step by Step answer.

This sounds as if you want us to do your homework for you. Sorry, that wouldn’t be fair. However, I can give you the answers (but leave you to do the working yourself): (1) 26[sup]2[/sup]×10[sup]3[/sup] (2) 26·25×10·9·8.

If there’s anything you don’t understand, you may ask. Asking questions on what you don’t understand is fine. Asking others to do your homework for you is not. smile

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#3 2007-06-28 03:11:45

rockysheedy
Member
Registered: 2006-06-11
Posts: 12

Re: 5 symbol codes can be formed if first 2 are letters next 3 are digits

I was doing 10 different things at a time due to which I was not able to give proper attention to two of the problem. I did not had time to solve it. I wanted it for one day. Now, there is no need for the solution of this one. Now I have ample of time to understand the concept behind. The book that I was refering to was itself in shortcut and with some typos due to which it was becoming tedious to analyze and dissect that rubbish book.

If incase I stuck up in that I will let you know.

Thanks a lot.

Last edited by rockysheedy (2007-06-28 03:13:45)

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