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Mathematics, 24.11.2019 02:31 AM28

You are judging photos for a pet contest. you have to rank 4 dog pictures from a total of 30, and 5 cat pictures from a total of 16. the number of possible permutations equals
a. 30p4 + 16p5
b. 4! • 5!
c. 30p4 • 16p5
d. 30! /4! x 16! /5!

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