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

$x\%$ of $932 + 30 = 309.6$. Find the value of $x$.

$A$ person's salary has increased from $Rs. 7200$ to $Rs. 8100$. What is the percentage increase in his salary (in $\%$)?

$A$ student has to obtain $33 \%$ of the total marks to pass. He got $125$ marks and failed by $40$ marks. The maximum marks are

The population of a town increased from $1,75,000$ to $2,62,500$ in a decade. The average per cent increase of population per year is

In a test,a candidate secured $468$ marks out of maximum marks $A$. If the maximum marks $A$ were converted to $700$ marks,he would have secured $336$ marks. What were the maximum marks of the test?