The following table shows the numbers of pairs of shoes of 6 different brands sold by a shop during a given week.
| Brand | Shoes |
| B1 | 42 |
| B2 | 58 |
| B3 | 61 |
| B4 | 49 |
| B5 | 71 |
| B6 | 49 |
The shop also sells brand B7 now. The number of pairs of shoes sold of B7 are 20% more than the average number of shoes sold of the other 6 brands. What is the number of shoes sold of B7?