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If R & S are consecutive Odd integers, then is R>S?

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If R & S are consecutive Odd integers, then is R>S?  [#permalink]

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New post 09 Jan 2011, 06:23
1
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A
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C
D
E

Difficulty:

  55% (hard)

Question Stats:

59% (01:12) correct 41% (01:06) wrong based on 41 sessions

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If R & S are consecutive Odd integers, then is R>S?

(1) R & S are prime numbers.
(2) 5<R<11

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Re: If R & S are consecutive Odd integers, then is R>S?  [#permalink]

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New post 09 Jan 2011, 06:32
tirupatibalaji wrote:
If R & S are consecutive Odd intergers, then is R>S?
(1) R & S are prime numbers.
(2) 5<R<11

Explainations welcomed!!!


If R & S are consecutive Odd intergers, then is R>S?

(1) R & S are prime numbers. Clearly insufficient.

(2) 5<R<11 --> R is either 7 or 9, still not sufficient.

(1)+(2) As R is a prime number in the range 5<R<11 then it must be 7. Now, R and S to be consecutive odd integers and S also to be a prime number S must be 5, so S=5<7=R. Sufficient.

Answer: C.
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Re: If R & S are consecutive Odd integers, then is R>S?  [#permalink]

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New post 29 Mar 2017, 06:08
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Re: If R & S are consecutive Odd integers, then is R>S? &nbs [#permalink] 29 Mar 2017, 06:08
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