Two articles were sold at Rs. 480 each. On one, he gains 20% and on the other, he loses 12%. How much does he gain or lose in the whole transaction?
Choose the correct choice.
A) 0.54%
B) 1.54%
C) 2.54%
D) 3.54%
E) 4.54%
for the 1st article,cost price   =(100*480)/(100+20)= 
<gadget id="calculator">(100*480)/(100+20)</gadget>
<output>400</output>
400   for the 2nd article,cost price=(100*480)/(100-12)=545.45   total CP=400+545.45= 
<gadget id="calculator">400+545.45</gadget>
<output>945.45</output>
945.45   total SP=480+480= 
<gadget id="calculator">480+480</gadget>
<output>960</output>
960   so profit=960-945.45= 
<gadget id="calculator">960-945.45</gadget>
<output>14.55</output>
14.55   %gain=(14.55*100)/945.45=1.54%   ANSWER:1.54%
<result>B</result>
Two articles were sold at Rs. 480 each. On one, he gains 20% and on the other, he loses 12%. How much does he gain or lose in the whole transaction?