The number which exceeds $16 \%$ of it by $42$ is:

$A$ person scores $45 \%$ of the total marks in the exam and still fails by $40$ marks. The passing percentage of the exam is $55 \%$. What is the maximum marks of the exam?

Ramola's monthly income is three times Ravina's monthly income. Ravina's monthly income is $15\%$ more than Ruchira's monthly income. Ruchira's monthly income is $₹ 32,000$. What is Ramola's annual income?

If $x$ $\%$ of $y$ is $100$ and $y$ $\%$ of $z$ is $200,$ then find a relation between $x$ and $z$.

In a company,there are $75\%$ skilled workers and the remaining are unskilled. $80\%$ of skilled workers and $20\%$ of unskilled workers are permanent. If the number of temporary workers is $126$,what is the total number of workers?

$16 \frac{2}{3} \%$ of $600 \, \text{gm} - 33 \frac{1}{3} \%$ of $180 \, \text{gm}$