Hi, I cannot understand the second question in the quiz. There 7 options for 4 elements, but this time with a reserve player. Could you please explain why the answer is 7!/2!? Thanks, Timur

Hey Timur, Thank you for your question! Following the same logic as the one in Question 1 from the same quiz, we need to choose 5 people (4 people for the team and one reserve player) out 7. Using variations without repetition, we obtain: V = 7! / (7-5)! = 7! / 2! Hope this helps! Kind regards, 365 Hristina

Hi Hristina, Ah, ok. I thought every 4 player needs a reserve player, but it is only one player for all four. Now it is clear. Thank you very much for the explanation.