4+4+4+4+4= 20
There are 1140 five digit combinations between numbers 1 and 20.
There are 167960 combinations.
How many combinations of five. Numbers could you get from 1 to 20
Assuming no repeated digits, lowest first, 20; in any order 120; Allowing repeated digits: 216
There are 6C3 = 20 such combinations.
There are 1140 five digit combinations between numbers 1 and 20.
There are 1140 5 digit combinations from 1 to 20. 20 combination 3 computes that.
There are 38760 combinations.
There are 167960 9 digits combinations between numbers 1 and 20.
There are 167960 combinations.
I am assuming you mean 3-number combinations rather than 3 digit combinations. Otherwise you have to treat 21 as a 2-digit number and equate it to 1-and-2. There are 21C3 combinations = 21*20*19/(3*2*1) = 7980 combinations.
116,280
How many combinations of five. Numbers could you get from 1 to 20
Assuming you are using combinations in the colloquial way (which is the mathematical "permutations" where order of selection does matter) to create a 3 digit number that does not start with 0, ie creating a number that is between 100 and 999 inclusive then: If repeats are not allowed there are 3 × 3 × 2 = 18 possible numbers If repeats are allowed, then there are 3 × 4 × 4 = 48 possible numbers. If you are using combinations in the mathematical sense where order of selection does not matter and are creating groups of 3 digits, then: If repeats are not allowed there are 4 possible groups If repeats are allowed there are 20 possible groups.
There are 4845 combinations.
20
The number of combinations are 10*20*30; which is 6000.