Which of the following numbers is divisible by 11?

Explanation

1. 01

   Rule for 11: the difference between the sum of alternate digits must be 0 or a multiple of 11.

2. 02

   7,381: $(7 + 8) - (3 + 1) = 15 - 4 = 11$, a multiple of 11.

3. 03

   2,845 gives $6 - 13 = -7$, 4,617 gives $5 - 13 = -8$, and 6,473 gives $13 - 7 = 6$.