If Leedom is assigned to Thursday, which one of the following must be true?

Maria-Marin on July 13, 2020

Heyyy could you please tell me why A is not right ?

shunhe on July 14, 2020

Hi @Maria-Marin,

Thanks for the question! So let’s say that we put L in Thursday. Now does it have to be true that G is in Monday? Well, right now we know that

_ _ P _ L _ _

since Park is on Tuesday based on the last rule.

OK, well now let’s think about where G can go. G can only go on one day, so it can’t go on Sunday or Saturday. And G has to go before or after K. So G can’t go on Wednesday. So we could theoretically put G on either Monday or on Friday. Either way, K is going on Sunday and Saturday. So now we know

K _ P _ L _ K

And we just have to place G, H, and N. Now let’s take a look at (A). Does G have to go on Monday? Well, let’s see if it works on Friday.

K H/N P N/H L G K

And this is a perfectly valid game. Which means that it doesn’t have to be true that G is on Monday, since G can be on Friday. And so since this is a must be true question, (A) is wrong.

Hope this helps! Feel free to ask any other questions that you might have.