$18 \%$ of $125 \times 9 \%$ of $25 = ? - 100$

If the difference between a number and $\frac{3}{5}$ of the same number is $30$,then find the number.

$\frac{3}{7}$ of $\frac{49}{6}$ of $\frac{4}{7} = ?$

The sum of four numbers is $64.$ If you add $3$ to the first number,$3$ is subtracted from the second number,the third is multiplied by $3,$ and the fourth is divided by $3,$ then all the results are equal. What is the difference between the largest and the smallest of the original numbers?

The sum of three numbers is $264$. If the first number is twice the second and the third number is one-third of the first,then the second number is:

$A$ certain two-digit number is three times the sum of its digits. If $45$ is added to the number,the digits are reversed. Find the number.