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If x is a prime number, then 3x is
[#permalink]
15 Dec 2019, 02:04
15 Dec 2019, 02:04
00:00
Question Stats:
66% (00:20) correct
33% (00:06) wrong based on 6 sessions
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If x is a prime number, then 3x is
A.even
B.odd
C.cannot be determined
D.divisible by 4
E.a prime number
A.even
B.odd
C.cannot be determined
D.divisible by 4
E.a prime number
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Joined: 02 Jan 2020
Status:GRE Quant Tutor
Posts: 1111
Given Kudos: 9
Location: India
Concentration: General Management
Schools: XLRI Jamshedpur, India - Class of 2014
GMAT 1: 700 Q51 V31
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WE:Engineering (Computer Software)
Re: If x is a prime number, then 3x is
[#permalink]
02 Jan 2020, 07:33
02 Jan 2020, 07:33
If x is a prime number then 3x can be
Even when x=2
Odd in all other cases as all other prime numbers are odd (except 2) and 3*odd number = odd numbers
Since, we can get both odd and even numbers so answer is Cannot be determined, Option C
Hope it helps!
Even when x=2
Odd in all other cases as all other prime numbers are odd (except 2) and 3*odd number = odd numbers
Since, we can get both odd and even numbers so answer is Cannot be determined, Option C
Hope it helps!
gmatclubot
Re: If x is a prime number, then 3x is [#permalink]
02 Jan 2020, 07:33
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