a pair of articles was bought for $ 50 at a discount of 50 %. what must be the marked price of each of the article?	Choose the most appropriate option:	A) $ 25	B) $ 12.50	C) $ 29.65	D) $ 35.95	E) $ 45.62
<gadget id="calculator">100 - 50</gadget>
<output>50</output>

<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">50 * 25</gadget>
<output>1_250</output>

<gadget id="calculator">1_250 / 100</gadget>
<output>25/2 = around 12.5</output>

<result>B</result>
a pair of articles was bought for $ 50 at a discount of 50 %. what must be the marked price of each of the article?
divide(multiply(subtract(const_100, 50), divide(50, const_2)), const_100)
"s . p . of each of the article = 50 / 2 = $ 25 let m . p = $ x 50 % of x = 25 x = 25 * . 5 = $ 12.50 answer is b"