If $64$ is subtracted from a number,then it reduces to $36 \%$ of itself. What is $\frac{4}{5}$ of that number?

Two numbers are such that the ratio between them is $3:5;$ but if each is increased by $10,$ the ratio between them becomes $5:7.$ The numbers are

The sum of two numbers is $22$. Five times one number is equal to $6$ times the other. The bigger of the two numbers is

$(13.96)^{2} - (15.03)^{2} + (18.09)^{2} - 32.65 = ?$

The sum of the digits of a two-digit number is $8$. If the digits are reversed,the number is increased by $54$. Find the number.

The last digit,that is,the digit in the unit's place of the number $[(57)^{25}-1]$ is