Question

in how many ways can a group of 9 boys standard for photography in row & the leader always at the center ?​

Answer 1

Answer:

Firstly, standing in a row means order matters, so you want a permutation not a combination. You can treat the three people as one, but then you have to remember that those three people have 3! ways to order themselves and yet stand together, so it should be 7! * 3!.

Step-by-step explanation:

Please mark me as brainliest answer