A fruit-seller buys $x$ guavas for $Rs.\, y$ and sells $y$ guavas for $Rs.\, x .$ If $x>y,$ then he made
$\frac{x^{2}-y^{2}}{x y} \% \operatorname{loss}$
$\frac{x^{2}-y^{2}}{x y} \%$ gain
$\frac{x^{2}-y^{2}}{y^{2}} \% \operatorname{loss}$
$\frac{x^{2}-y^{2}}{y^{2}} \times 100 \%$ gain
A man buys an article for $10 \%$ less than its value and sells it for $10 \%$ more than its value. His gain or loss percent is
A cloth merchant sold half of his cloth at $20 \%$ profit, half of the remaining at $20 \%$ loss and the rest was sold at the cost price. In the total transaction, his gain or loss will be
A shopkeeper sold Sarees at $Rs.$ $266$ each after giving $5\%$ discount on labelled price. Had he not given the discount, he would have earned a profit of $12 \%$ on the cost price. What was the cost price of each Saree? (in $Rs.$)
A shopkeeper professes to sell his goods at cost price but uses a weight of $800\, g$ instead of kilogram weight. Thus, he makes a profit of
Mr. Kapur purchased two toy cycles for $Rs. 750$ each. He sold these cycles, gaining $6 \%$ on one and losing $4 \%$ on the other. The gain or loss percent in the whole transaction is