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Earn +20 ptsQ: How many combinations of 2 numbers are there in 10 numbers?
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How many combinations of 2 are there in 11 numbers?
There are 11C2 = 11*10/(2*1) = 55 combinations.
How many combinations of 2 can you get in 8 numbers?
There are 8*7/(2*1) = 28 combinations.
If using numbers 0 through 9 how many different 2 digit combinations can be made?
If there are no restrictions on duplicated numbers or other patterns of numbers then there are 10 ways of selecting the first digit and also 10 ways of selecting the second digit. The number of combinations is therefore 10 x 10 = 100.
2 dice each dice has 6 numbers how many combinations could there be?
There are 21 combinations.
How many 2 combinations are there in the numbers 1 to 9?
none
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