The ratio between x and y is 7/5; x is multiplied by y and y is multiplied by x , what is the ratio between the new values of x and y?	Pick.
A) 7 / 5  B) 5 / 7  C) 1  D) 49 / 25  E) it can not be determined

Rationale: ratio = 7 k / 5 k = 7 / 5 , 14 / 10 , etc . x is multiplied by y and y is multiplied by x - - > ( 7 k * 9 k ) / ( 9 k * 7 k ) = 1 answer : c
Answer: C