answersLogoWhite

0


Best Answer

they are 21C2 combinations

User Avatar

Wiki User

โˆ™ 2015-03-06 14:07:43
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar

Add your answer:

Earn +20 pts
Q: How many combinations are there in 21 numbers?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

2 dice each dice has 6 numbers how many combinations could there be?

There are 21 combinations.


What number combinations can be made with the numbers 1 2 3 4 5 6 7?

There is 1 combinations with 7 numbers in them,7 combinations with 1 or 6 numbers in them,21 combinations with 2 or 5 numbers in them,35 combinations with 3 or 4 numbers in them.Notionally, there is also one combination with no numbers in it.In all then, there are 128 ( = 27) combinations.There is 1 combinations with 7 numbers in them,7 combinations with 1 or 6 numbers in them,21 combinations with 2 or 5 numbers in them,35 combinations with 3 or 4 numbers in them.Notionally, there is also one combination with no numbers in it.In all then, there are 128 ( = 27) combinations.There is 1 combinations with 7 numbers in them,7 combinations with 1 or 6 numbers in them,21 combinations with 2 or 5 numbers in them,35 combinations with 3 or 4 numbers in them.Notionally, there is also one combination with no numbers in it.In all then, there are 128 ( = 27) combinations.There is 1 combinations with 7 numbers in them,7 combinations with 1 or 6 numbers in them,21 combinations with 2 or 5 numbers in them,35 combinations with 3 or 4 numbers in them.Notionally, there is also one combination with no numbers in it.In all then, there are 128 ( = 27) combinations.


How many combinations of 3 numbers are there in 23 numbers?

There are 23C3 = 23!/(20!*3!) = 23*22*21/(3*2*1) = 1,771 combinations.


How many combinations of 4 numbers are there in 7 numbers?

how many combinations of 4 numbers are there in 7 numbers


How many combinations of 6 numbers are there in 9 numbers?

There are: 9C6 = 84 combinations


How many different combinations of 3 positive odd numbers have a sum of 21?

There are 12 different combinations of 3 positive odd numbers that add up to 21. Namely: (There are many permutations of these combinations.) 1,1,9 1,3,17 1,5,15 1,7,13 1,9,11 3,3,15 3,5,13 3,7,11 3,9,9 5,5,11 5,7,9 7,7,7


How many combinations of 6 are there for numbers 1-36?

There are 1,947,792 combinations of 6 numbers out of 36 numbers.


How many possible combinations are there of 9 numbers from 20 drawn numbers?

There are 167960 combinations.


How many combinations are there with 99 numbers?

It depends on combinations with how many numbers. There is only one combination of 99 numbers taken from 99.


How many 2 digit combinations can be made from 3 numbers combined?

Only three: 12, 13 and 23. Remember that the combinations 12 and 21 are the same.


What are two numbers if the difference is 21?

There are an infinite number of combinations where this could be the answer.


How many combinations using 8 numbers are there in 20 numbers what are these combinations?

There are 125970 combinations and I am not stupid enough to try and list them!


How many combinations of 6 numbers are there in 47 numbers What are these combinations?

There are 10,737,573 combinations and you must think I am mad if you think I am going to list them!


How many five number combinations can you get from 6 numbers?

252 combinations, :)


How many 6 digit combinations are there in 20 numbers?

There are 38760 combinations.


How many combinations of 6 numbers are there in 42 numbers what are the numbers?

There are 5245786 possible combinations and I am not stupid enough to try and list what they are!


How many combinations of 6 numbers are there in 45 numbers what are the numbers?

About 13million,


How many combinations of 7 numbers in 25 numbers and what are they?

There are 480,700 combinations and I am not going to even try to list them!


How many combinations of 5 are there in 0 to 10 numbers?

There are a huge number of combinations of 5 numbers when using the numbers 0 through 10. There are 10 to the 5th power combinations of these numbers.


How many combinations can you make with the numbers 2 3 6 7 and 8?

You can make 5 combinations of 1 number, 10 combinations of 2 numbers, 10 combinations of 3 numbers, 5 combinations of 4 numbers, and 1 combinations of 5 number. 31 in all.


How many 6 number combinations in 138?

There are 8,592,039,666 combinations of 6 numbers out of 138 numbers, like the numbers from 1 to 138.


How many combinations of 6 numbers are there in 6 numbers What are these combinations?

software with winning combination for the florida pick 6 game what are these numbers


How many number combinations are possible with three numbers?

If the numbers can be repeated and the numbers are 0-9 then there are 1000 different combinations.


How many combinations of 6 numbers if you have 7 numbers?

There are 7 combinations. Each combination excludes a different one of the seven numbers.


How many combinations of 4 numbers?

16