A reduction of 22% 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.
A) s.2.82  B) s.2.4  C) s.2.5  D) s.2.2  E) s.2.1
100*(22/100)= 
<gadget id="calculator">100*(22/100)</gadget>
<output>22</output>
22 --- 10   ? --- 1=&gt; Rs.2.2   100 --- 78   ? --- 2.2 =&gt; Rs.2.82   s.2.82nswer:s.2.82
<result>A</result>
A reduction of 22% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?