There are 7 data from small to large, the average is 38. If the average of the first four numbers is 33, and the average of the last four numbers is 42, try to find the median of this group of data

There are 7 data from small to large, the average is 38. If the average of the first four numbers is 33, and the average of the last four numbers is 42, try to find the median of this group of data

The median of seven numbers is the fourth number after the row from small to large
The sum of the first four numbers and the sum of the last four numbers add up to the sum of the original seven numbers plus the median
The median was (33 + 42) × 4-38 × 7 = 34