+0  
 
+1
339
2
avatar+2765 

When a positive integer is expressed in base 7, it is \(AB_7\)  , and when it is expressed in base 5, it is \(BA_5\)   . What is the positive integer in decimal?

tertre  Mar 20, 2017
 #1
avatar+12565 
+1

Seventeen.

ElectricPavlov  Mar 20, 2017
 #2
avatar+26758 
+2

325,  237,  (1710)

Alan  Mar 20, 2017

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