$x\%$ of $360 = 129.6$. Find $x$.

On decreasing the price of a colour $TV$ by $30 \%$,its sale is increased by $20 \%$. The effect on the revenue is:

Aditya's monthly salary is $15\%$ more than Sanjay's monthly salary. If Aditya's monthly salary is $17250$,what is Sanjay's annual salary?

Three sets of $40, 50,$ and $60$ students appeared for an examination,and the pass percentages were $100\%, 90\%,$ and $80\%,$ respectively. The pass percentage of the whole set is:

$A$'s salary is $20 \%$ less than $B$'s salary. Then $B$'s salary is more than $A$'s salary by:

$x$ is $30 \%$ more than $y$ and $25 \%$ less than $z$. If the value of $y$ is $₹ 300$,then what is the value (in $₹$) of $z$?