Solve Square Hexagon series .

Question

Answer 1

In each row,the average of 1st 2 numbers and last 2 numbers gives the middle number.
eg In 1st row (73+19)/2=46
In 2nd row (11+7)/2=9
similarly the missing numbers in the last row are 8 and 1

Answer 2

SO 7+3+4+6+1+9=30 IN THE FIRST HORIZONTAL(COLUMN)
SO 7+1+5=+9+6+1=29 IN THE FIRST VERTICAL (ROW)
SO 1+5+4+8+9+1=28 IN THE LAST HORIZONTAL (COLUMN)
SO 9+7+2+1+7+1=27IN THE LAST VERTICAL (ROW)