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Korvikt [17]
3 years ago
11

How many ways can 4 people sit in a row of 7 ​chairs?

Mathematics
2 answers:
mafiozo [28]3 years ago
7 0
Four people can sit in a row of seven in three ways
Ghella [55]3 years ago
6 0

7\cdot6\cdot5\cdot4=840

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