Increasing the original price of an article by 15 percent and then increasing the new price by 15 percent is equivalent to increasing the original price by	Choices.
A) 32.25%  B) 31.00%  C) 30.25%  D) 30.00%  E) 22.50%
You can do this by approximation, or with straight math by calculating 100*1.15^2.   Or step by step: if you increase 100 by 15% you'll get 115, then if you increase 115=100+15 by 15% again, 100 will gain 15 again and 15 will gain its 15% which is 2.25, so total gain is 15+2.25= 
<gadget id="calculator">15+2.25</gadget>
<output>17.25</output>
17.25 --&gt; 115+17.25=132.25.   32.25%nswer: 32.25%.
<result>A</result>
Increasing the original price of an article by 15 percent and then increasing the new price by 15 percent is equivalent to increasing the original price by