9000139304

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Project ID: 
9000139304
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1
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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.
\(\frac{50!} {2!\; 48!} = 1\:225\)
\(\frac{50} {2} = 25\)
\(50^{2} = 2\:500\)
\(\frac{50!} {48!} = 2\:450\)