The following table shows the amount (in ~ '000) received by a store-owner by selling 5 different brands of milk during a given month.
| Brand | Amount |
| B1 | 62 |
| B2 | 56 |
| B3 | 72 |
| B4 | 41 |
| B5 | 69 |
The price per litre of milk of all the brands is ₹40 per litre. How many litres of milk, of all the brands taken together, were sold by the store during that month?