Two brothers took the GMAT exam, the higher score is A and the lower one is B. If the difference between the two scores is equal to their average, what is the value of B/A ?
Choose the correct choice from the following answers.
A) 3 B) 2 C) 1/2 D) 1/3 E) There isn't enough data to answer the question.
Answer is 1/3 : 1/3   A - B = (A + B)/2   Solving for B/A = 1/3   1/3
<result>D</result>
Two brothers took the GMAT exam, the higher score is A and the lower one is B. If the difference between the two scores is equal to their average, what is the value of B/A ?