The respective ratio between the present age of Manisha and Deepali is $5:x$. Manisha is $9$ years younger than Parineeta. Parineeta’s age after $9$ years will be $33$ years. The difference between Deepali’s and Manisha’s age is the same as the present age of Parineeta. What will come in place of $x$?

The difference between the present ages of Arun and Deepak is $14$ years. Seven years ago the ratio of their ages was $5:7$, respectively. What is Deepak’s present age?

In a college, the students in the Arts and Commerce faculties were in the ratio of $4:5$, respectively. When $65$ more students joined the Commerce faculty, the ratio became $8:11$. How many students are there in the Arts faculty?

Sarita started a boutique, investing an amount of Rs $50,000$. Six months later, Neeta joined her with an amount of Rs $80,000$. At the end of one year, they earned a profit of Rs $18,000$. What is Sarita’s share in the profit?