The population of a town $2$ years ago was $2,45,000$. It increased by $12\%$ in the first year and then increased by $15\%$ in the second year. What is the current popu­lation of the town ?

In a school $75\%$ of the children are attending coaching classes, and the remaining $245$ children study on their own. What is the total strength of the school?

$78\%$ of a number is $2496$. What is $55\%$ of that number?

In an examination, it is required to get $296$ marks out of the aggregate marks to pass. A student gets $222$ marks and is declared failed by $10\%$ marks. What are the maximum aggregate marks a student can get?