$A$ company issued $50000$ shares of par value $Rs. 10$ each. If the total dividend declared by the company is $Rs. 62500$,then find out the rate of dividend paid by the company. (in $\%$)

The shares of a company of par value $Rs. 10$ each,are available at $20\%$ premium. Find out the amount paid by the buyer who wants to buy $2500$ shares. What would be the gain of the buyer if he sells those shares at the rate of $Rs. 20$ per share? (in $Rs.$)

$A$ certain sum is divided among $A, B$ and $C$ in such a way that $A$ gets $Rs. 40$ more than $\frac{1}{2}$ of the sum. $B$ gets $Rs. 120$ less than $\frac{3}{8}$ of the sum,and $C$ gets $Rs. 200$. What is the total sum in $Rs.$?

$A$ man buys $Rs. 50$ shares in a company which pays $10\%$ dividend. If the man gets $12.5\%$ on his investment,at what price did he buy the shares? (in $Rs.$)

Meena bought $Rs. 36000$ of $7\frac{1}{2} \%$ stock at $92$ and sold it when its price rose to $Rs. 93 \frac{3}{4}$. Find out her gain percent.

$A$ man bought $20$ shares of $Rs. 100$ at $4$ discount,the rate of dividend being $12 \%$. The rate of interest obtained is (in $\%$):