Question

Use elimination method to find out the answers A total of 8 people are sitting around a circular table. Black and Brown are placed opposite and facing each other. There are 3 people between Black and Brown. Yellow is sitting to the left of Brown. Blue is seated next to Yellow. Green is seated between Red and Brown. Who is sitting opposite Red?

Answer 1

I’ve always confused “permutation” and “combination” — which one’s which?

Here’s an easy way to remember: permutation sounds complicated, doesn’t it? And it is. With permutations, every little detail matters. Alice, Bob and Charlie is different from Charlie, Bob and Alice (insert your friends’ names here).

Combinations, on the other hand, are pretty easy going. The details don’t matter. Alice, Bob and Charlie is the same as Charlie, Bob and Alice.

Permutations are for lists (order matters) and combinations are for groups (order doesn’t matter).

A joke: A "combination lock" should really be called a "permutation lock". The order you put the numbers in matters. (A true "combination lock" would accept both 10-17-23 and 23-17-10 as correct.)

Answer 2

heya...!!!

here is ua answer:

Blue is sitting opposite to red.