#5 Permutations and combina

Permutations and Combinations would play a huge role in determining the final standings of the CONMEBOL World Cup Qualifiers.
If Argentina lose to Ecuador; they are almost certainly out of the World Cup unless Peru lose to Colombia by a greater margin than that in the Argentina-Ecuador game and Venezuela defeats Paraguay, which will pick them up to the 5th Place, qualifying for the play-off against the Kiwis.The odds lining up in favour of the Argentines in case of a defeat in Quito are bleak, but the South American qualifiers have been unpredictable.
If Argentina draw in Ecuador; they will make the play-off if Peru loses at home to Colombia. Chile losing by more than one goal in Brazil would also throttle the Argentines to the playoffs.
If Argentina win; they are certain to at least make it to the qualifiers irrespective of the results of the other matches. Although if odds are in the favours of the men in White and Blue, they could even make it directly to Russia. If Brazil is successful in defeating Chile at home or Peru and Colombia draw their match, Argentines would make it in the top four. Peru beating Colombia be a smaller difference than Argentina beating Ecuador would also take them directly to the main event.