Question

What must be true for the value of one digit of a number to be ten times the value of another digit in that number ?
A. The digits must be identical and in the same period.

B. The digits must be identical and in the same number.

C. The digits must be identical and next to each other.

D. The digits must be identical and in different periods.

Answer 1

it's gotta be c, because we know that a 1 in the tens place is worth ten times a much as a 1 in the ones place.