On Thursday, the original price of a shirt was discounted by 20%. On Monday, the price of the shirt was marked up C percent so that the new price on Monday was 20% more than the original price before the discount. What is the value of C?
Select:
A) 20%  B) 30%  C) 33 1⁄3%  D) 40%  E) 50%
Let the original price be 100   discounted Price = 80   New Price = 20 +100= 
<gadget id="calculator">20 +100</gadget>
<output>120</output>
120   C=(40/80)*100   Ans:50%
<result>E</result>
On Thursday, the original price of a shirt was discounted by 20%. On Monday, the price of the shirt was marked up C percent so that the new price on Monday was 20% more than the original price before the discount. What is the value of C?