The four-digit numeral 3AA1 is divisible by 9. What does A represent.
The sum of the digits must be divisible by 9: 3771
Thanks you so very much!
Hello SmartWater,
the divisibility rule of 9 applies so that the cross sum of the number is divisible by 9. The number is 3AA1. Only 7 can be used for A (3 + 7 + 7 + 1 = 18 -> 18 is divisible by 9).
Straight
Thank you both for your time to help!
+182 
