The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 40 kg of rice previously?
Choose the correct choice from the following options.
A) 5 kg B) 15 kg C) 25 kg D) 50 kg E) none

Rationale: "solution : let rs . 100 be spend on rice initially for 40 kg . as the price falls by 20 % , new price for 40 kg rice , = ( 100 - 20 % of 100 ) = 80 new price of rice = 80 / 40 = rs . 2 per kg . rice can bought now at = 100 / 2 = 50 kg . answer : option d"
Answer: D