In the following question, select the missing number from the given series.
1161,1164,1168,1173,1179,?

Let's find the differences between consecutive terms:
1164−1161=3

1168−1164=4

1173−1168=5

1179−1173=6

The difference increases by 1 at each step (+3,+4,+5,+6,…).
The next difference must be +7.

Missing number=1179+7=1186