An article was sold for Rs.3,600 at a discount of 10%. Find the selling price if the discount was 15%.
Let marked price = XÂ
Discount = 10% of XÂ
        = 0.1X
selling price = m.p - discount
          = X - 0.1X
          = 0.9 X
Given that S.P = Rs 3600
so,
3600 = 0.9X
X = RS4000
given 15% discountÂ
so, 10% of 4000 = 600
s.p = m.p - discount = 4000 - 600 = 3400
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