The number of students in a class is increased by $20 \%$ and the number now becomes $66$. Initially,the number was:

If $A$ is $20 \%$ more than $360,$ then what is the value of $A$?

$75 \%$ of $480 = x \times 15$. Find the value of $x$.

In an examination,$30 \%$ and $35 \%$ students respectively failed in History and Geography while $27 \%$ students failed in both the subjects. If the number of students passing the examination is $248$,find the total number of students who appeared in the examination.

In a marriage party,$32 \%$ are women,$54 \%$ are men,and there are $196$ children. How many men are there in the marriage party?

What is the $40 \%$ of $50 \%$ of $\frac{3}{4}$ of $3200$?