Question 5
Find the digits represented by the letters in both original column calculations. (a) AB+AB+AB=CCC. Give all possible two-digit values of AB, in increasing order. (b) ABCD×9=DCBA. Give ABCD. Enter the two values for (a), then a semicolon and the value for (b), for example: x,y; z.
Within each separate calculation, equal letters mean equal digits, different letters mean different digits, and a leading digit is not zero. The assignments in (a) and (b) are independent.
Within each separate calculation, equal letters mean equal digits, different letters mean different digits, and a leading digit is not zero. The assignments in (a) and (b) are independent.