A shopkeeper sells two T.V. sets at the same price. There

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A shopkeeper sells two T.V. sets at the same price. There is a gain of 20% on one TV and a loss of 20% on the other. State which of the following statement is correct :

1. The shopkeeper makes no net gain or profit
2. The shopkeeper loses by 2%
3. The shopkeeper gains by 4%
4. The shopkeeper loses by 4%

If a man sells two articles at same price and makes a profit of y% on first and y% loss on second,

there is always a loss of	y²	%
	100

Here , y = 20%

∴ Loss% =		(20)²	=	400	= 4%
		100		100