385, 462, 572, 396, 423, 671, 264	Choose the correct choice from the following choices.
A) 385	B) 423	C) 671	D) 264	E) None of these
Solution   In each number except 423,the middle digit is the sum of the other two. Answer 423
<result>B</result>
385, 462, 572, 396, 423, 671, 264