Mel J.

asked • 05/09/21

Combinations Question

How many combinations are there of the letters A, B, C, D, if I take 3 at a time? Please Explain.


Combinations: Permutations:

A B C ABC ACB BAC BCA CAB CBA

A B D ABD ADB BAD BDA DAB DBA

A C D ACD ADC CAD CDA DAC DCA

B C D BCD BDC CDB CBD DBC DCB

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