3 years ago

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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