If w/x = 1/3 and w/y = 3/4, then (x + y)/y = Select.
A) 13 / 4  B) 6 / 5  C) 7 / 5  D) 8 / 5  E) 9 / 5

Rationale: "w / x = 1 / 3 = > x = 3 w and w / y = 3 / 4 = > y = ( 4 / 3 ) w ( x + y ) / y = ( 3 w + 4 / 3 w ) / ( 4 / 3 w ) = ( 13 / 3 w ) / ( 4 / 3 w ) = 13 / 4 correct option : a"
Answer: A