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[cooper2248817]

Is n/18 an integer?

(1) 5n/18 is an integer
(2) 3n/18 is an integer

this problem was discussed earlier. I answered A to this but apparently the answer to this question is "C"

I don't understand as to why since the question is very similar to the one in number properties. If statement 1 is insufficient then the answer in the book is wrong too.

I AM CONFUSED!!!!!!!!!!!!!!!!!!!!!!!

[JK]

Do a search in the message board. You'll find the answer.

[cooper2248817]

The explanation does not make sense. The number properties guide gives you one answer and the cat gives you another. Which is correct?

The Guide
is p/18 an integer?

1. 5p/18 is an integer. According to the guide this is sufficient.

The CAT
is n/18 an integer?
1. 5n/18 is an integer. according to the explanations and cats, this statement is insufficient.

Why doesn't the explantion for the CAT not apply to the one from the guide? I don't understand. It is the exact statement with the same restrictions etc.

I read the posts to this question and I still do not get it.

Please explain.

Thanks

[cooper2248817]

I got it. Sorry for the repost. The book specifically states that if "P" is an integeter" and the CAT does not give us that restriction.

Thanks

[JK]

Cool. Can you post according to the guidelines going forward? It would be a lot more helpful.