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Q: How many combinations of four digits can be made from the numbers 1-9?
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How many combinations of four digits can be made from 1-44?

45


How many combinations of three digits can be made from the numbers 123?

6


How many combinations of three digits can be made using thirty-two numbers?

32C3 = 4960


How many combinations of three digits can be made from numbers 1 - 3?

Six combinations: 123, 132, 213, 231, 312, 321


How many combinations of three digits can be made from the numbers 998?

Assuming you are treating each number as a number and not as an individual unit, the numbers you can make from these digits are 899, 989 and 998.


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Not repeating, it is 7*6*5*4 which is 840 ways ---- There are 7 choices for each of four digits, right? 74 = 2401


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3 x 3 x 3 x 3 = 81 combinations


How many combination of four digits can be made from the numbers one through twenty four?

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How many numbers can be made from four digits when two are the same?

I assume you mean how many 4-digit numbers can be made from a set such as {A,A, B, C} where A, B and C are single digits. There are 12 such numbers.


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120 combinations using each digit once per combination. There are 625 combinations if you can repeat the digits.


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