Question

N is an even number such that the units digit of N is the same as the units digit of its square. Which of the following could be the units digit of N?
A) 2
B) 4
C) 6
D) 8

Answer 1

N is an even number such that the units digit of N is the same as the units digit of its square.The units digit of N is 6.

Answer 2

6 is the correct answer
square of 6 is 36
unit digit is same