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There are 5C2 = 5*4/(2*1) = 10 combinations.

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Q: What is the number of combinations for 2 out of 5 events?
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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 4 number combinations are there using 1 2 3 4 5?

There are 120 permutations and 5 combinations.


Can you find the prime number combinations of 60?

They are: 2*2*3*5 = 60


How many number combinations are there if there are six numbers and you have to have a four number combination?

all numbers have to be different 720 360 (6*5*4*3*2*1), * * * * * Wrong. Combinations do not have to be different. Those are permutations. There are only 6C4 = 6*5/(2*1) = 15 combinations.


How many combinations of 6 numbers are there in 56 numbers What are these combinations?

just intrested in the number combinations * * * * * Number of combinations = 56C6 = 56*55*54*53*52*51/(6*5*4*3*2*1) = 32,468,436


How many 5 number combinations are in 47?

Assuming a number can appear only once, there are 47C5 = 47*46*45*44*43/(5*4*3*2*1) = 1,533,939 combinations.


If you have the numbers 1 2 3 4 5 and use theses numbers to come up with a 5 digit number what are the possible combinations with out repeating a number like 11255?

120 different combinations (5 x 4 x 3 x 2).


How many 6 number combinations using digits 1 2 3 4 5 6?

654321-100000= 554321 combinations


How many combinations of 2 breads with or without lettuce and 5 toppings?

There are 2*2*5 = 20 combinations.


How many five number combinations dose it have in 1 to 20?

The number of combinations is 20C5 = 20!/(15!*5!) = 20*19*18*17*16/(5*4*3*2*1) = 15,504


How many combinations can you make from the numbers 1 2 3 4 5 not multiplying?

The rearrangement of 5 figure numbers will be 5x4x3x2x1 which is 120 combinations, when you don't repeat a number.


The number of permutations of 5 things taken 2 at a time is 20?

Not quite. Number of combinations is 20, number of permutations is 10. Any 2 from 5 is 10 but in any order doubles this.