isi-entrance 2014 Q4

isi-entrance · India · solved Not Maths Forming Numbers with Digit Constraints
Find the number of six-digit numbers using digits from $\{2, 3, 9\}$ (repetition allowed) that are divisible by 6.
(A) 80 (B) 82 (C) 81 (D) 83
Find the number of six-digit numbers using digits from $\{2, 3, 9\}$ (repetition allowed) that are divisible by 6.

(A) 80 \quad (B) 82 \quad (C) 81 \quad (D) 83