Welcome to your interview.
The question is on your right: Course-Correcting a 20% Delay. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
If your project is running 20% behind schedule due to resource constraints, what immediate steps do you take to course-correct?