How many 3-digit even numbers are possible such that if one of the digits is 5, the next/succeeding digit to it should be 1?
Choose the correct choice from the following: A) 5 B) 305 C) 365 D) 405 E) 495

Rationale: 510 , 512 , 514 , 516 , and 518 , so total 5 . hence option a .
Answer: A