probability

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probability

by kalyand022 » Sat Nov 29, 2008 8:36 am
how many 3 letter words can be created from alphabets abcd

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Re: probability

by sudhir3127 » Sat Nov 29, 2008 9:26 am
kalyand022 wrote:how many 3 letter words can be created from alphabets abcd
24.

4.3.2 or 4*3!

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Re: probability

by muzali » Sat Nov 29, 2008 9:44 am
kalyand022 wrote:how many 3 letter words can be created from alphabets abcd
1. No restrictions on letters being repeated: 4*4*4=4^3=64
2. No letter can be repeated=4*3*2=24