A shopkeeper marks the price of an article at ₹ 80. What

A shopkeeper marks the price of an article at ₹ 80. What will be the selling price, if he allows two successive discounts of 5% each?

Single equivalent discount =		5 + 5 −	25		%
			100

Single equivalent discount = 9	3	=	39	%
	4		4

∴ S.P. = 80 ×	361	= ₹ 72.2
	400

Alternate method to solve this question :
Here, M.P. = 80, D₁ = 5%, D₂ = 5%, S.P. = ?

S.P. = M.P.		100 − D₁			100 − D₂
		100			100

S.P. = 80		100 − 5			100 − 5
		100			100

S.P = 80 ×	95	×	95	= ₹ 72.2
	100		100