Geeta and Rekha are wives of Deepak. Ravi is Rekha's stepson. How is Geeta related to Ravi?

Mother

Before answering this question, we must be aware of the method to solve the blood relation questions.

For example:

It is now clear, how to make charts in Blood relations. Now, shifting to another type, in this we solve the question in the following manner. 

The chart for the above question is as follows:

Ravi is the stepson of Rekha, that means he is the son of Geeta. Therefore, we can say that Geeta is the mother of Ravi.