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!