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three digit combinations

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Pool Digit Combinations 2018-04-18
From Jacob:
I need to know all the possible 3 digit combinations from the following pool of digits: 1st pool (1,2,3), 2nd pool (4,5) and the 3rd pool (7,8,9,0). Each pool has to be represented in the combinations.
The numbers can be repeated as long as they are not of the same set. Example for not repeating: 123 is ok but not 321 or 231,132,213, etc.

The question is somehow related to Mike's but the difference is the digits are allocated into pools. Your help can assist me solve a mystery. Thanks.

Answered by Penny Nom.
Three digit combinations 2004-01-27
From Kevin:
how many 3 digit combinations can be made with 0-9. i have been told only 1,000. when i asked jeeves the response was 750 without using any digit twice. i have entered a raffle and received a ticket with 4 sets of 3 digit numbers.
Answered by Penny Nom.
The number of three digit combinations 2003-08-16
From Fred:
There are four close friends having a heated discussion concerning the the number of three digit combinations using the numbers 0 through 9. The discussion›involves the daily lottery.› Any assistance you can lend would be greatly appreciated.
Answered by Penny Nom.
 
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