Sushma invested $Rs.\, 245000$ in $7\%$ stock at $98$ and sold the stock when its price rose to $Rs.\, 100$. She invested the sale proceeds in $9\%$ stock at $125$. Find out the change in income of Sushma. (in $Rs.$)

Mr. Lal invested $Rs. 92000$ in $9\frac{1}{2}\%$ stock at $91$ (Brokerage: $Rs. 1$). Find out the annual income of Mr. Lal from this investment (in $Rs.$).

Anu invested $Rs.\, 32400$ in $8 \%$ stock at $90$. She sold $Rs.\, 18000$ stock when the price rose to $Rs.\, 95$ and the remaining stock at $Rs.\, 98$. She invested the total sale proceeds in $10 \%$ stock at $96 \frac{1}{2}$. Find the change in income of Anu (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 $Rs.$?

Jatin invested $Rs. 27260$ in buying $Rs. 100$ shares of a company at $Rs. 116$ each. If the company paid $16 \%$ dividend at the end of the year,find his income from the dividend (in $Rs.$).

$A$ medicine company issued $125000$ shares of par value $Rs. 20$ each. If the total dividend declared by the company is $Rs. 375000$,find out the rate of dividend paid by the company (in $\%$).