$A$ dealer allows a discount of $15 \%$. $A$ customer pays an amount of $Rs. 318.75$ for an article. At what price is the article listed? (in $Rs.$)

The discount on $Rs. 5229$ due in $1$ $year$ $9$ $months$ reckoning compound interest at $5 \%$ is (in $Rs.$)

The banker's discount on $Rs. 2400$ at $12 \%$ p.a. is the same as the true discount on $Rs. 2520$ for the same time and at the same rate. The time is (in months):

While selling a watch,a shopkeeper gives a discount of $5 \%$. If he gives a discount of $7 \%$,he earns $Rs. 15$ less as profit. The marked price of the watch is (in $Rs.$):

The present worth of a certain sum due sometime hence is $Rs. 1700$ and the true discount is $Rs. 170$. The banker's gain is (in $Rs.$)

$A$ person bought an article for $Rs. 2500$ and sold it the same day for $Rs. 3410$,allowing a credit of $2$ years. If the rate of interest is $12\%$ per annum,then the gain of the man is (in $\%$):