IMPORTANT PERMS AND COMBS

[rare mason]

Hello! When you say "arrange 5 people" do you mean in a straight line or in a table type of manner?

[fickle night]

when they use people it often means they are all different

but then there's no reason to tell you how many boys

so you literally can't tell what they mean you to do

[grand grail]

people are distinct objects, they are never treated identically

in this case, you can do 11 c 5 (choosing 5 random people from the total 11) * 5!(arranging them)

so this will be 11!/6!

[shut garden]

The q in our exam didnt specify

It just said how many possible areangements

Im assuming straight line

[shut garden]

Yep i think ur right

I made a silly mistake where i thought the boys are identical to each other

And the girls are identical to each other

[grand grail]

there has only been one question ive encountered, where people were identical

it was when the question specifically stated 'identical twins(treat like identical objects)'