A man brought an article for, ruppes X and sold it for ruppes 16. if the loss was X percent find the cost price of the article.
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Step-by-step explanation:
cp of article= X
Sp of article= 16 rs.
Loss = X-16
Loss percent= (X-16 )/ X ×100
X= (X-16)/X × 100
X= (100X-1600)/X
(X)sqr 2 = 100X - 1600
(X) sqr2 - 100X + 1600= 0
(X)sqr2 -80X-20X+1600=0
(X-80)(X-20)=0
X=80,20
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