If a/x = 1/3 and a/y =1/ 6, then (x + y) =
Choose the correct choice:
A) A)2a
B) B)a/2
C) C)6a
D) D)7a
E) E)9a
Ratio 1:   3a = x   Ratio 2:   6a = y   x+y = 9a   Answer is 9a
<result>E</result>
If a/x = 1/3 and a/y =1/ 6, then (x + y) =