How many arrangements of the 9 letters a, b, c, p, q, r, x, y, z are there such that y is between x and z? (Any two, or all three, of the letters x, y, z may not be consecutive.)

How many arrangements of the 9 letters a, b, c, p, q, r, x, y, z are t

1.	How many arrangements of the 9 letters a, b, c, p, q, r, x, y, z are there such that y is between x and z? (Any two, or all three, of the letters x, y, z may not be consecutive.)
Answer» Total possible ways`=.^7C_326!`

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How many arrangements of the 9 letters a, b, c, p, q, r, x, y, z are there such that y is between x and z? (Any two, or all three, of the letters x, y, z may not be consecutive.)

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