$\text{A, B}$ and $\text{C}$ can independently do a work in $15$ days, $20$ days and $30$ days, respectively. They work together for some time after which $\text{C}$ leaves. $\text{A}$ total of $₹18000$ is paid for the work and $\text{B}$ gets $₹6000$ more than $\text{C}$. For how many days did $\text{A}$ work?
- $2$
- $4$
- $6$
- $8$