When a number is divided by $12$,the quotient is $\frac{1}{4}$ of another number. By what percentage is the first number greater than the second number?

$x \%$ of $y + y \%$ of $x = ?$

$A$ businessman imported laptops worth $Rs$ $210,000$,mobile phones worth $Rs$ $100,000$,and television sets worth $Rs$ $150,000$. He had to pay $10\%$ duty on laptops,$8\%$ on phones,and $5\%$ on television sets. How much total duty (in Rupees) did he have to pay on all items as per the above details?

During one year,the population of a town was increased by $5 \%$ and during the next year,the population decreased by $5 \%$. If the total population is $9975$ at the end of the second year,then what was the population size in the beginning of the first year?

If $A$ is $150 \%$ of $B$,then $B$ is what percent of $A+B$?

Sonal spent $Rs. 45760$ on the interior decoration for her home,$Rs. 27896$ on buying an air conditioner,and the remaining $28 \%$ of the total amount she had as cash with her. What was the total amount?