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A nursery employee wishes to plant 2 identical Golden Delicious apple trees and 5 identical Bartlett pear trees in one row. How many distinct arrangements are possible?

 Oct 18, 2018
 #1
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[ Total trees  ! ]   /  [ Number of Goldn De;icious trees! * Number of Bartlett trees ! ]  = 

 

7! / [ 5! * 2! ]   =   

 

21 disitnct arrangements

 

 

cool cool cool

 Oct 19, 2018

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