In following number series, two terms have been put within brackets. Choose the appropriate option - Which is the number that comes next in the following sequence ?4, 6, 12, 14, 28, 30, (.....)

Answer: B. 60

The given sequence is a combination of two series :
I. 4, 12, 28, (.....)     and
II. 6, 14, 30.
Now, the pattern followed in each of the above two series is :
+ 8, + 16, + 32, ... .
So, missing number = (28 + 32) = 60.
Hence, the answer is (b).