Page 1 of 1

Bill and Clinton take the square of a certain decimal number and express it in base 5 and 6 respectively. Then Bush comes and he takes the two representations and assuming that the expressions are in base 10, adds the numbers. Which of the following cannot be the value of the unit €™s digit of the sum obtained?
a. 0
b. 2
c. 8
b. 2
c. 8
d. 6
e. 3
