What should come in place of '?' in the given series?
7 10 16 25 ?

The correct option is 37.

To find the missing number in the given series, we need to analyze the pattern of differences between consecutive terms:

The given series is:
7, 10, 16, 25, ?

Let us calculate the differences between successive numbers:
First difference: $10-7=3$
Second difference: $16-10=6$
Third difference: $25-16=9$

We can observe that the differences between successive terms are consecutive multiples of 3:
3, 6, 9, ...

Following this pattern, the next difference in the series should be:
$9+3=12$

Therefore, to find the term that comes in place of the question mark, we add 12 to the last term (25):
$25+12=37$