Question

What number should replace the question mark?

Answer 1

answer: 8
as in others...7+4+5=8+X ==> X=16-8 = 8

Answer 2

the answer is 8
5+7+2=6+8
9+3+4=7+9
2+5+8=9+6
7+4+5=8+8

Answer 3

Format of 4 groups are given below :-

(8+6), (5+7+2) ==> 14, 14
(9+7), (9+3+4) ==> 16, 16
(6+9), (2+5+8) ==> 15, 15
(8+8), (7+4+5) ==> 16, 16

So, Question mark replaces number 8

Ans :- 8

Answer 4

5+7+2=6+8
9+3+4=7+9
2+5+8=9+6
7+4+5=8+8
so the right answer is eight(8).