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Mathematics 8 Online
OpenStudy (pphalke):

A school gymnasium has six different doors. How many ways can a person enter the gymnasium and leave through a different door?

OpenStudy (zzr0ck3r):

for each door they enter, they have 5 choices of which they can exit.

OpenStudy (mjdennis):

How many choices for the entry door? Multiply that by the number of choices for the exit door

OpenStudy (pphalke):

5 times six that's 30

OpenStudy (zzr0ck3r):

that is what I got

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