1) 6! a) 720 b) 270 c) 207 2) 2! 3! a) 16 b) 12 c) 48 3) 5! 3! a) 336 b) 56 c) 20 4) 4P4 a) 24 b) 224 c) 256 5) 8P4 a) 202 b) 200 c) 1680 6) How many permutations are there in the letters of the word HOPEFUL? a) 5040 b) 1680 c) 4050 7) How many four-digit codes can be made out of the digits 0, 2, 4, 6, and 8 if REPETITION of digits is NOT ALLOWED? a) 102 b) 120 c) 201 8) In how many ways can 4 distinct red cars and 4 distinct black cars be parked in a row of 6 – car garage? a) 20,160 b) 414, 720 c) 360

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