Raman sells an article at a loss of 10%. If he had sold it for rs,30 more he would have gained 5%. Find the cost price of the article.
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Let CP = x
Sp is 90 % of x (considering 100% value , for ex. If Cp = 100/- Sp= 90/- then loss = 10/-)
If he sold for rs 30/- more, the profit will be 5% or 105%of x.
Now ,
90%x + 30 = 105%x
(90 + 3000)/100 = 105x/100
Cancelling the denominator of 100 we get,
90x + 3000 = 105x
15x = 3000
X = 200/-
or Cp = rs 200/-
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