A reduction of 20% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg? Choose the correct choice from the following answers:	A) Rs.2.7	B) Rs.2.4	C) Rs.2.5	D) Rs.2.1	E) Rs.2.9
100*(20/100)= 
<gadget id="calculator">100*(20/100)</gadget>
<output>20</output>
20 --- 10   ? --- 1=&gt; Rs.2   100 --- 80   ? --- 2 =&gt; Rs.2.5   Answer:Rs.2.5
<result>C</result>
A reduction of 20% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?