The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 20 kg of rice previously?  Select the correct option:
A) 5 kg
B) 15 kg
C) 25 kg
D) 30 kg
E) None
Solution: Let Rs. 100 be spend on rice initially for 20 kg.   As the price falls by 20%, new price for 20 kg rice,   = (100 -20% of 100) = 80   New price of rice = 80/20 = Rs. 4 per kg.   Rice can bought now at = 100/4= 
<gadget id="calculator">100/4</gadget>
<output>25</output>
25 kg.   Answer: Option 25 kg
<result>C</result>
The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 20 kg of rice previously?