In a class of students, 1/2 of the number of girls is equal to 1/6 of the total number of students. What is the ratio of boys to girls in the class?	Choose the correct choice from the following answers:
A) 1 / 2
B) 2 / 3
C) 2 / 1
D) 3 / 2
E) 4 / 3

Rationale: "( 1 / 2 ) g = ( 1 / 6 ) ( b + g ) 6 g = 2 b + 2 g 4 g = 2 b b / g = 2 / 1 . the answer is c ."
Answer: C