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Find the number of permutations of all the letters of the word WIZARD. a) No restriction b) The 3rd letter must be Z c)The letter

Find the number of permutations of all the letters of the word WIZARD.

a) No restriction

b) The 3rd letter must be Z

c)The letter A or the letter r cannot be in the second place.

d) The letters w, i and z MUST be together.

e)The letters A and R cannot be together.

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