1.

The number of ways to arrange the letters of the English alphabet, so that there are exactly 5 letters between a and b, is:

A. 24P5
B. 24P5 × 20!
C. 2 × 24P5 × 20!
D. 2 × 24P5 × 24!
Answer» D. 2 × 24P5 × 24!


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