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number combination

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worder | 23:38 Sun 31st Dec 2006 | How it Works
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Hi there folks,

how many combinations of three numbers from 0 to 9 could be made up?

thank you in advance.
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Including 000 there are 1000
If you mean the number of possible combinations of ten different objects (0-9) taken 3 at a time there are 120 possible combinations.
Under these circumstances 047 would be considered
the same combination as 740 or 407 or 470 etc.
If you can use a number more than once then 1000 is correct - this comes from each digit having 10 options: 10 x 10 x 10 = 1000

If you can only use a digit once then it is 10 x 9 x 8 = 720

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