A man sells an article at 15% loss. Had he sold it for Rs. 420/- more he could have gained 20%. What is the cost price of the article?	Choose the most appropriate option:	A) Rs.420/-	B) Rs.400/-	C) Rs.900/-	D) Rs.1200/-	E) None of these
Explanation:   Short cut method:   Loss =====&gt; 15 %   Profit ====&gt; 20 %   ~   ----------------   35 % ---------&gt; Rs. 420/-   100 % --------&gt; Rs. 1200/-   Answer: Option Rs.1200/-
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A man sells an article at 15% loss. Had he sold it for Rs. 420/- more he could have gained 20%. What is the cost price of the article?