Given
P (n,r) = n! / (n - r)!
P (8,4) = 8! / (8 - 4)!
P (8,4) = 8! / 4!
P (8,4) = 8 • 7 • 6 • 5 • 4! / 4!
P (8,4) = 8 • 7 • 6 • 5
P (8,4) = 1680 orders
#CarryOnLearning
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Given
P (n,r) = n! / (n - r)!
P (8,4) = 8! / (8 - 4)!
P (8,4) = 8! / 4!
P (8,4) = 8 • 7 • 6 • 5 • 4! / 4!
P (8,4) = 8 • 7 • 6 • 5
P (8,4) = 1680 orders
#CarryOnLearning