 <translate> The total of seven numbers = 7X9 = 63
The total of first 3 and last 3 numbers is = 3 X 7+3 X 11 = 54
So, the middle number is (63 - 54 ) = 9
The final answer: (C). <yor> Àpapọ̀ iye méje = 7X9 = 63 Àpapọ̀ àwọn nóńbà mẹ́ta àkọ́kọ́ àti mẹ́ta tó kẹ́yìn jẹ́ = 3 X 7+3 X 11 = 54 Nítorí náà, iye tó wà ní àárín jẹ́ (63 - 54 ) = 9 Ìdáhùn tó péye: (C). 