If m and z are integers, is z divisible by 11?
(1) m is a two-digit number with equal tens and units digits.
(2) m - z is divisible by 11.
[spoiler]OA is C
If m=11 and z=0, then z is not divisible by 11. Is OA wrong? [/spoiler]
(1) m is a two-digit number with equal tens and units digits.
(2) m - z is divisible by 11.
[spoiler]OA is C
If m=11 and z=0, then z is not divisible by 11. Is OA wrong? [/spoiler]
