In a class of students, 1/2 of the number of girls is equal to 1/3 of the total number of students. What is the ratio of boys to girls in the class? Pick one:
A) 1 / 2 B) 1 / 3 C) 2 / 3 D) 1 / 4 E) 3 / 4

Rationale: "( 1 / 2 ) g = ( 1 / 3 ) ( b + g ) 3 g = 2 b + 2 g g = 2 b b / g = 1 / 2 . the answer is a ."
Answer: A