What is a better investment,$4 \%$ stock at $Rs. 120$ or $3 \%$ stock at $Rs. 80$?

$A$ man invested $Rs. 14,400$ in $Rs. 100$ shares of a company at $20\%$ premium. If the company declares $5\%$ dividend at the end of the year,then how much does he get? (in $Rs.$)

Find out the income percent of a buyer on $5 \%$ debentures of face value $Rs.\, 100$ and available in the market for $Rs.\, 125$. (in $\%$) (in $.8$)

Find the income by investing $Rs. 81000$ in $9 \%$ stock at $135$. (in $Rs.$)

The capital of a company is made up of $50000$ preferred shares with a dividend of $20 \%$ and $20000$ common shares,the par value of each type of share being $Rs. 10$. The company had a total profit of $Rs. 180000$,out of which $Rs. 30000$ were kept in a reserve fund and the remaining was distributed to shareholders. Find the dividend percentage for the common shareholders (in $\%$).

Find out the annual dividend received by Sunil for his $200$ preferred shares and $1000$ common shares,both of par value $Rs. 100$ each,if the dividend declared on a preferred share is $10 \%$ per annum and an annual dividend of $12 \frac{1}{2} \%$ on the common shares. (in $Rs.$)