We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
115
2
avatar+928 

Answer: 36

 Aug 3, 2019
 #1
avatar+6045 
+2

8 1 digit numbers, leaves 7 each of the digits 1-8

81-87 uses all the 8s and leaves 6 each of 1-7

71-76 uses all the 7s and leaves 5 each of 1-6

61-65 leaves 4 each of 1-5

51-54

41-43

31-32

21

 

8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = (8)(9)/2 = 36

 Aug 3, 2019
 #2
avatar+928 
0

Thanks for the help!!!

dgfgrafgdfge111  Aug 4, 2019

9 Online Users

avatar
avatar