$5999.99 + 1999 \div 39.99 \times 50.01 = ?$

If $2 \frac{1}{2}$ is added to a number and the sum is multiplied by $4 \frac{1}{2}$,and $3$ is added to the product,and then dividing the sum by $1 \frac{1}{5}$,the quotient becomes $25$. What is the number?

$5894 \div 15.01 + 590.01 - 111.98 = ?$

$A$ number exceeds $20 \%$ of itself by $40$. The number is:

$A$ fraction is greater than twice its reciprocal by $\frac{7}{15}$. What is the fraction?

$(\sqrt{9})^{3} \times (\sqrt{81})^{5} \div 27^{2} = 3^{?}$