Problem 63 of 7
Count outcomes with restrictions for choose 3 students from 12 including one required student.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
account for required, forbidden, or fixed positions.
Hidden until you reveal it.
Account for required, forbidden, or fixed positions before multiplying or choosing.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the restriction.
2. Adjust available choices or group fixed items.
3. Count the remaining valid outcomes.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Unrestricted count when restrictions are present.