$499.99 + 1999 \div 39.99 \times 50.01 = ?$

If $1$ is added to the denominator of a fraction,the fraction becomes $\frac{1}{2}$. If $1$ is added to the numerator,the fraction becomes $1$. The fraction is

Rachita enters a shop to buy ice-creams,cookies,and pastries. She has to buy at least $9$ units of each. She buys more cookies than ice-creams and more pastries than cookies. She picks up a total of $32$ items. How many cookies does she buy?

$1 \frac{5}{6} + 2 \frac{3}{5} + 4 \frac{2}{3} = ?$

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?

The quotient arising from the division of $24446$ by a certain divisor is $79$ and the remainder is $35$. What is the divisor?