A reduction of 30% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?	Answers: A) 2.8 B) 2.3 C) 2.5 D) 2.1 E) 4.3
100*(30/100)= 
<gadget id="calculator">100*(30/100)</gadget>
<output>30</output>
30 --- 10   ? --- 1=&gt; Rs.3   100 --- 70   ? --- 3 =&gt; Rs.4.3   Answer: 4.3
<result>E</result>
A reduction of 30% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?