+0  
 
+1
59
3
avatar+251 

We call a number peachy if every digit in the number is either a  or next to a  For example, the numbers 333, 83, and 303 are all peachy, but the numbers    32523 and 340 are not peachy.

How many positive 2-digit numbers are peachy?

 Feb 25, 2022
 #1
avatar
0

 

We call a number peachy if every digit in the number is either a  or next to a  For example, the numbers 333, 83, and 303 are all peachy, but the numbers    32523 and 340 are not peachy.   

How many positive 2-digit numbers are peachy?
    

 

I think the missing number is a 3.  

 

13,   23,   31,   32,   33,   34,  

35,   36,   37,   38,   39,   43,  

53,   63,   73,   83,   93    

 

Answer:   I found 17 of them.  

.

 Feb 25, 2022
 #2
avatar
+2

 

The site won't let me edit.  I overlooked 30. 

 

Add 30 to the list.  That makes 18.  

.

Guest Feb 25, 2022
 #3
avatar+251 
+1

Thank you for the explanation!

dolphinia  Mar 2, 2022

5 Online Users