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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
A positive integer X, divided by 7 has a remainder 2. Which
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28 Oct 2020, 01:06
28 Oct 2020, 01:06
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A positive integer X, divided by 7 has a remainder 2. Which of the following must be true?
I. X is odd
II. X cannot be a prime number
III. (X + 5) divided by 7 has remainder 0.
(A) I only
(B) I and II only
(C) III only
(D) I and III only
(E) I, II and III
I. X is odd
II. X cannot be a prime number
III. (X + 5) divided by 7 has remainder 0.
(A) I only
(B) I and II only
(C) III only
(D) I and III only
(E) I, II and III
Re: A positive integer X, divided by 7 has a remainder 2. Which
[#permalink]
28 Oct 2020, 03:07
28 Oct 2020, 03:07
1
positive integer X, divided by 7 has a remainder 2
I. X is odd is not correct
take 16 as example 16 divided by 7 remainder is 2 but 16 is even
II. X cannot be a prime number is not correct
take 23 as example 23 divided by 7 remainder is 2 but 23 is prime
III. (X + 5) divided by 7 has remainder 0.is correct
given X divided by 7 remainder is 2 so if we add 5 to X surely remainder will be zero
option C is correct
I. X is odd is not correct
take 16 as example 16 divided by 7 remainder is 2 but 16 is even
II. X cannot be a prime number is not correct
take 23 as example 23 divided by 7 remainder is 2 but 23 is prime
III. (X + 5) divided by 7 has remainder 0.is correct
given X divided by 7 remainder is 2 so if we add 5 to X surely remainder will be zero
option C is correct
gmatclubot
Re: A positive integer X, divided by 7 has a remainder 2. Which [#permalink]
28 Oct 2020, 03:07
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