If the sum of two numbers is $33$ and their difference is $15,$ the smaller number is

If the number $583x437$ is completely divisible by $9$,then the smallest whole number in the place of the blank digit $x$ will be

Find the least values of $x$ and $y$ so that the number $5x423y$ is divisible by $88$.

In a two-digit number,the digit in the unit's place is $1$ more than twice the digit in the ten's place. If the digits in the unit's place and the ten's place are interchanged,the difference between the new number and the original number is $1$ less than the original number. What is the original number?

The sum of squares of two numbers is $80$ and the square of their difference is $36$. The product of the two numbers is

$A$ number exceeds its two-fifths by $75$. The number is: