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Count the possible combinations of 2 letters chosen from L, M, N, O.The possible combinations of 2 letters are .

Question

Count the possible combinations of 2 letters chosen from L, M, N, O.

The possible combinations of 2 letters are:

  • LM
  • LN
  • LO
  • MN
  • MO
  • NO
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Solution

To count the possible combinations of 2 letters chosen from L, M, N, O, we use the combination formula which is nCr = n! / r!(n-r)!.

Here, n is the total number of items, and r is the number of items to choose.

In this case, n = 4 (since we have 4 letters: L, M, N, O) and r = 2 (since we are choosing 2 letters).

So, the number of combinations is 4C2 = 4! / 2!(4-2)! = (4321) / (2121) = 6.

So, there are 6 possible combinations of 2 letters chosen from L, M, N, O.

This problem has been solved

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