What is the greatest number of two-letter arrangements that can be formed from the letters g, r, a, d, and e if each letter is used only once in the arrangement?

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asked Jul 3, 2019 186k views

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Carl Poole · Answer 1 · 2019-07-09T18:42:02+0000

Assuming the ordering is important in the arrangement, for the first letter you have a choice of 5, then for the second letter only 4 are left.

The total number of arrangements is 5*4=20

What is the greatest number of two-letter arrangements that can be formed from the letters g, r, a, d, and e if each letter is used only once in the arrangement?

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