A reduction of 25% in the price of oil enables a house wife to obtain 5kgs more for Rs.500, what is the reduced price for kg?	Choose the correct choice from the following choices:	A) 25	B) 60	C) 70	D) 80	E) 20

Rationale: "a 500 * ( 25 / 100 ) = 125 - - - - 5 ? - - - - 1 = > rs . 25"
Answer: A