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zero!!!!

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Manager
Manager
User avatar
B
Joined: 30 Apr 2017
Posts: 88

Kudos [?]: 2 [0], given: 74

zero!!!! [#permalink]

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New post 03 Oct 2017, 02:34
hello

should I take zero as an even integer
there are some cases in which zero is considered as an even integer and calculated to solve the question
and in other question, it doesn't
I could not find a pattern for solution( or question) that takes or doesn't take zero as an even integer

Is there any rule?

Kudos [?]: 2 [0], given: 74

Director
Director
avatar
P
Joined: 25 Feb 2013
Posts: 619

Kudos [?]: 304 [0], given: 39

Location: India
GPA: 3.82
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Re: zero!!!! [#permalink]

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New post 03 Oct 2017, 03:24
soodia wrote:
hello

should I take zero as an even integer
there are some cases in which zero is considered as an even integer and calculated to solve the question
and in other question, it doesn't
I could not find a pattern for solution( or question) that takes or doesn't take zero as an even integer

Is there any rule?


hi soodia

0 is always an even integer, 3 is odd but 30 is even because unit's digit is 0
Can you provide some example where 0 is not considered as even?

Kudos [?]: 304 [0], given: 39

Expert Post
Magoosh GMAT Instructor
User avatar
G
Joined: 28 Dec 2011
Posts: 4547

Kudos [?]: 8939 [0], given: 111

Re: zero!!!! [#permalink]

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New post 06 Oct 2017, 09:45
soodia wrote:
hello

should I take zero as an even integer
there are some cases in which zero is considered as an even integer and calculated to solve the question
and in other question, it doesn't
I could not find a pattern for solution( or question) that takes or doesn't take zero as an even integer

Is there any rule?

Dear soodia,

I'm happy to respond. :-)

My friend, it's very important to distinguish when the question is talking about an "integer" and when it is talk about a "positive integer." The number zero is always an integer, but it is also the only number on the number line that is neither positive nor negative, so it would be excluded if "positive" were stipulated.

The even integers are { . . . -8, -6, -4, -2, 0, 2, 4, 6, 8, . . .}

The even positive integers are {2, 4, 6, 8, 10, 12, 14, . . . }

I don't know whether this answers your question. If it doesn't, I am going to ask you to post the exact text of different questions, some where you feel zero is included and some where you feel zero is excluded. In math, precision is everything, and every word of the prompt of a question needs to be regarded with the same precision.

Does all this make sense?
Mike :-)
_________________

Mike McGarry
Magoosh Test Prep

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Education is not the filling of a pail, but the lighting of a fire. — William Butler Yeats (1865 – 1939)

Kudos [?]: 8939 [0], given: 111

Re: zero!!!!   [#permalink] 06 Oct 2017, 09:45
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