A dealer sold two types of goods for Rs. 10,0 | vedclass

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(D) When two items are sold at the same selling price $(S.P.)$,and there is a profit of $x \%$ on one and a loss of $x \%$ on the other,the overall re

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$4 \%$ loss

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(D) When two items are sold at the same selling price $(S.P.)$,and there is a profit of $x \%$ on one and a loss of $x \%$ on the other,the overall result is always a loss.The formula for the net loss percentage is given by: $	ext{Loss } \% = \left( \frac{x}{10} ight)^2 = \frac{x^2}{100}$.Given $x = 20$,the loss percentage is:$	ext{Loss } \% = \frac{20^2}{100} = \frac{400}{100} = 4 \%$.Therefore,the dealer incurred a $4 \%$ loss in the entire transaction.

$A$ dealer sold two types of goods for $Rs. 10,000$ each. On one of them,he lost $20 \%$ and on the other he gained $20 \%$. His gain or loss per cent in the entire transaction was

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