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Maksim231197 [3]
3 years ago
7

How many ways can teacher arrange 4 students in front row of class with 30 students

Mathematics
2 answers:
harina [27]3 years ago
8 0
30 choices for first seat
29 for 2nd
28 for 3rd
27 for 4th

answer is 30*29*28*27=657720 ways
Cloud [144]3 years ago
6 0
Choose 4 students from 30 
means 30P4
657720
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