A rice trader buys $8$ quintals of rice for $Rs.\, 3,600,10 \%$ rice is lost in transportation. At what rate should he sell to earn $15 \%$ profit in $Rs.$ per quintal ?

If the selling price of $50$ articles is equal to the cost price of $40$ articles, then the loss or gain percent is 

A sells an article to $B$ making a profit of $\frac{1}{5}^{t h}$ his outlay. $B$ sells it to $C,$ gaining $20 \%$. If $C$ sells it for $Rs.\, 600$ and incurs a loss of $\frac{1}{6}^{t h}$ his outlay, the cost price of $A$ is (in $Rs.$)

Sarita sells a Phone at a profit of $20 \% .$ If she had bought it at $20 \%$ less and sold it for $Rs.\, 180$ less, she would have gained $25 \%$. Find thé gost price of the Phone in $Rs.$

At a village trade fair a man buys a horse and a camel together for $Rs.$ $51,250 .$ He sold the horse at a profit of $25 \%$ and the camel at a loss of $20 \% .$ If he sold both the animals at the same price, then the cost price of the cheaper animal was $Rs.$.........

Articles are marked at a price which gives a profit of $25 \%$. After allowing a certain discount the profit reduces to $12\frac{1}{2} \%$. The discount percent is