If 1.5x=0.04y then the value of (y-x)/(y+x) is	Options:
A) 730 / 77  B) 73 / 77  C) 7.3 / 77  D) 7.3 / 770  E) 7.3 / 77

Rationale: x / y = 0.04 / 1.5 y / x = 1.5 / 0.04 by componendo dividendo rule ( y + x ) / ( y - x ) = 1.54 / 1.46 ( y - x ) / ( y + x ) = 1.46 / 1.54 = 73 / 77 answer : b
Answer: B