3 consecutive even numbers are such that thrice the first number exceeds double the third number by 7 . what is the third number ?
Choose the correct choice from the following choices:  A) 19  B) 21  C) 23  D) 25  E) 27

Rationale: let the three numbers be x , x + 2 , and x + 4 . 3 x = 2 ( x + 4 ) + 7 x = 15 and then the third number is x + 4 = 19 . the answer is a .
Answer: A