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help

 Jun 12, 2021
 #1
avatar+287 
+1

First find the number of ways to pick 2 boxes out of 5 distinct boxes where order doesn't matter.   Call this number $A$.  Next, find the number of ways to seat 3 people in a circle where two seatings are considered the same if one seating can be rotated or flipped in 3D into another.   Call this number $B$.  The answer is $A\cdot B$.

 Jun 12, 2021
 #2
avatar+493 
0

thanks!

 Jun 12, 2021
 #3
avatar+287 
0

Come to think of it, flipping should not be allowed.   Sorry.

Bginner  Jun 12, 2021

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