Total Questions: 2
(2nd number) - (1st number) = 111 (837, 948) → (948 - 837) = 111 (671, 782) → (782 - 671) = 111 (258, 369) → (369 - 258) = 111 But,
(456, 765) → (765 - 456) = 309
Hence, (456, 765) is the correct answer.