9000139304 | math4u.vsb.cz

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Level:

Project ID:

9000139304

Accepted:

1

Clonable:

0

Easy:

1

Find the number of possibilities how to choose a pair of timekeepers for a sport event if there are

50

candidates available for this job.

\frac{50!}{2! 48!} = 1 225

\frac{50}{2} = 25

50^{2} = 2 500

\frac{50!}{48!} = 2 450