A reduction of 25% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?	Choose one.
A) 2.8 B) 2.3 C) 2.5 D) 3.3 E) 2.9
100*(25/100)= 
<gadget id="calculator">100*(25/100)</gadget>
<output>25</output>
25 --- 10   ? --- 1=&gt; Rs.2.5   100 --- 75   ? --- 2.5 =&gt; Rs.3.3   Answer: 3.3
<result>D</result>
A reduction of 25% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?