A man purchased a bedsheet for $ 450 and sold it at a gain

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A man purchased a bedsheet for $ 450 and sold it at a gain of 10% calculated on the selling price. The selling price of the bedsheet was

Let the Selling Price of the bedsheet be $ y.
Cost Price of the bedsheet = $ 450
From question ,

∴ 450 +	10 × y	= y
	100

⇒ y -	y	= 450
	10

⇒	9y	= 450
	10

⇒ y =	450 × 10	= $ 500
	9

Second method to solve this question :
Cost Price ( C.P. ) = Rs. 450,

Profit =		10 S.P.	=	S.P.
		100		10

∴ Profit = S.P. – C.P.

	S.P.	= S.P. – 450
	10

450 = S.P. –	S.P.
	10

S.P. =	450 × 10	= $ 500
	9