A number is doubled and 13 is added. If resultant is trebled, it becomes 93. What is that number	Choose the correct choice from the following choices:
A) 8 B) 9 C) 12 D) 14 E) 16

Rationale: "explanation : = > 3 ( 2 x + 13 ) = 93 = > 2 x + 13 = 31 = > x = 9 option b"
Answer: B