A grocer has a sale of $Rs.6435,Rs.6927,Rs.6855,Rs.7230$ and $Rs.6562$ for $5$ consecutive months. How much sale must he have in the sixth month so that he gets an average sale of $Rs.6500$?
- $\text{Rs.4991}$
- $\text{Rs.5991}$
- $\text{Rs.6001}$
- $\text{Rs.6991}$