Can you find the missing number in the series below
1 5 9 2 6 10 3 ? 11 4 8 12
7
Series given in the problem :
1 5 9 2 6 10 3 ? 11 4 8 12
Let us break the series as :
1 5 9
2 6 10
3 ? 11
4 8 12
Now, read the numbers from left, top to bottom. The missing number is obviously 7.
