A reduction of 30% in the price of oil enables a house wife to obtain 9kgs more for Rs.900, what is the reduced price for kg? Choose the correct option:	A) 72	B) 27	C) 40	D) 30	E) 20
900*(30/100)= 
<gadget id="calculator">900*(30/100)</gadget>
<output>270</output>
270 ---- 9   ? ---- 1=&gt; Rs.30   Answer:30
<result>D</result>
A reduction of 30% in the price of oil enables a house wife to obtain 9kgs more for Rs.900, what is the reduced price for kg?