The price of a mobile was increased by 25 percent. The new price was then decreased by 10 percent. A single increase of what percent is equivalent to these two successive changes?	Choose the correct choice from the following: A) 10% B) 15% C) 17.5% D) 25% E) 12.5%
consider base price - $100   25% increase = 1.25*100= 
<gadget id="calculator">1.25*100</gadget>
<output>125</output>
$125   Then a 10% decrease on new price= 0.9* 125= 
<gadget id="calculator">0.9* 125</gadget>
<output>112.5</output>
$112.5   so final price of radio - $112.5   therefore a 12.5% increase   correct option - 12.5%
<result>E</result>
The price of a mobile was increased by 25 percent. The new price was then decreased by 10 percent. A single increase of what percent is equivalent to these two successive changes?