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9 September, 19:52

There are 10 roller coasters at 6 flags, and you only have time to ride 3 before the park closes. How many different

ways can you create a path to 3 different roller coasters?

120

210

720

151,200

+1
Answers (1)
  1. 9 September, 20:34
    0
    Answer: 720

    Step-by-step explanation:

    Number of different ways he can create a path to 3 different roller coasters is given by;

    N = nPr (n permutation r) = n! / (n-r) !

    Where n is the total number of roller coasters = 10

    and r is the number of roller coasters he could ride = 3

    Therefore,

    N = 10P3 = 10! / (10-3) ! = 10!/7!

    N = 10*9*8 = 720

    N = 720
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