Two brothers took the GMAT exam, the higher score is P and the lower one is Q. If the difference between the two scores is equal to their average, what is the value of Q/P ?
Options
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   P - Q = (P + Q)/2   Solving for Q/P = 1/3   1/3
<result>D</result>
Two brothers took the GMAT exam, the higher score is P and the lower one is Q. If the difference between the two scores is equal to their average, what is the value of Q/P ?