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 sold a horse to $B$ for $Rs.\, 4800$ by losing $20 \%$. $B$ sells it to $C$ at a price which would have given $A$ a profit of $15 \% .$ $B's$ gain is (in $Rs.$)
On a certain item profit is $150 \% .$ If the cost price increase by $25 \%$ what will be the new profit margin $($ in $\%)$
Surbhi bought a combined total of $25$ i-pads and i-phones. She marked up the i-pad by $20 \%$ on the cost price, while each i-phone was marked up by $Rs.\, 2000.$ She was able to sell $75 \%$ of the i-pads and $2$ i-phones and make a profit of $Rs.$ $49000 .$ The remaining i-pads and $3$ i-phones could not be sold by her. Find her overall profit or loss if she gets no return on unsold items and it is known that an i-phone costs $50 \%$ of an i-pad.
A fruit seller sells $\frac{3}{5}$ th part of fruit at a profit of $10 \%$ and remaining at a loss of $5 \% .$ If the total profit is $Rs.\, 1500$ then what is the total cost price of fruit in $Rs.$?
If the selling price is tripled and cost price doubled the profit would become $65 \% .$ What is the present profit (in $\%$)?