In any RPA developer/testing/business analyst interviews the interviewer would ask you this question to explain about the FTE reduction. Even though this question might looks irrelevant to developers and testers many interviewers wanted to test you on this.
To answer this question you need to explain the FTE calculation formula with an example. In the below video you will find out how to answer the question in detail. You can find the entire course which consists of top 30 RPA interview questions at the below link, https://www.udemy.com/course/crack-any-rpa-developer-interview/?referralCode=99CA0B0F628037AF1821