The marked price of an article is TK. 500. It is sold on two successive discounts of 20% and 10% .The selling price of that article is

A TK. 350
B TK. 375
C TK. 360
D TK. 400

Correct Answer: TK. 360

20% discount = (100 - 20) = TK.80 100 = 80 1 = 80100500 = 80×500100 = TK. 40010% discount  = (100 - 10)  = TK. 90100 = 901 = 90100400 = 90×400100 = TK. 360.'. Selling Price  = TK. 360 
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