Answer: 3527
Explanation:
consider all the numbers given , the sum of the first two digits and the last two digits sum up to be the same.
the first number is 9678
9+6 = 15
7+ 8 = 15
Second number: 4572
4 + 5 = 9
7 + 2 = 9
Third number : 5261
5+ 2 = 7
6 + 1 = 7
Fourth number : 5133
5 + 1 = 6
3 + 3 = 6
Fifth number : 3527
3 + 5 = 8
2 + 7 = 9
Sixth number : 6895
6 + 8 = 14
9 + 5 = 14
Seventh number : 7768
7 + 7 = 14
6 + 8 = 14
Considering all the numbers , the fifth number is the odd one out