What should come in place of ‘?’ in the given series?
116, 121, 131, 146, 166, ?

The correct option is 191.

To find the missing number in the given series, let us observe the pattern of differences between consecutive terms:

$121-116=5$

$131-121=10$

$146-131=15$

$166-146=20$

We can see that the difference between consecutive numbers increases by 5 each time (5, 10, 15, 20, ...).

Therefore, the next difference to add to 166 should be 25:

$166+25=191$

Thus, the number that comes in place of ‘?’ is 191.