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Marked Price of an article = 200 Selling Price of an article = 180 First Discount = 10% x 200 = 20 Customer buys an article = Rs 153 (S.P of an article) Second discount = (180 - 153) = 27 Now, Discount% = 27/180 ×100 = 15% Alternate method: Price is finally 153 from 200 , So net discount = (200-153)/200×100=47/200×100=23.5% Net discount after two successive discounts of a% & b % = a+b-ab/100 23.5= 10+b-(10×b)/100 13.5= b-b/10 Or 13.5 =9b/10 or b = 15%
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