If a/x = 1/5 and a/y =1/ 4, then (x + y) =
Choose the most appropriate option.
A) A)2a  B) B)a/2  C) C)6a  D) D)7a  E) E)9a
Ratio 1:   5a = x   Ratio 2:   4a = y   x+y = 9a   Answer is 9a
<result>E</result>
If a/x = 1/5 and a/y =1/ 4, then (x + y) =