Cost price = Rs 1000
Marked price = [1000(100+X)/100]= Rs (1000+10X)
Selling price = (1000+10X)[(100-0.4X)/100]
ATQ,
(1000+10X)[(100-0.4X)/100] = 1000 + 4X
100000 - 400X + 1000X - 4x² = 100000 + 400X
200X =4x²
X = 50
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100 Questions
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