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# If j and k are positive integers and j + k is odd

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Senior Manager
Joined: 10 Apr 2012
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Location: United States
Concentration: Technology, Other
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Kudos [?]: 256 [0], given: 325

If j and k are positive integers and j + k is odd [#permalink]  04 Feb 2014, 07:53
00:00

Difficulty:

55% (hard)

Question Stats:

66% (02:40) correct 34% (01:57) wrong based on 58 sessions
If j and k are positive integers and j + k is odd, what is the value of k?

(1) When j is divided by k, the remainder is 3

(2) j > 7 > 6 > k
[Reveal] Spoiler: OA
Math Expert
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Kudos [?]: 44807 [0], given: 6618

Re: If j and k are positive integers and j + k is odd [#permalink]  04 Feb 2014, 08:59
Expert's post
If j and k are positive integers and j + k is odd, what is the value of k?

j + k is odd, means that one of the unknowns is even and another odd.

(1) When j is divided by k, the remainder is 3. Since the remainder (3 in our case) is always less than the divisor (k in our case), then this statement implies that k is greater than 3. Not sufficient.

(2) j > 7 > 6 > k. Clearly insufficient.

(1)+(2) From above: 3 < k < 6 < 7 < j, thus k can be 4 (in this case j can be for example, 11) or 5 (in this case j can be for example, 8) Not sufficient.

Hope it's clear.
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Kudos [?]: 51 [0], given: 9

Re: If j and k are positive integers and j + k is odd [#permalink]  04 Feb 2014, 09:33
guerrero25 wrote:
If j and k are positive integers and j + k is odd, what is the value of k?

(1) When j is divided by k, the remainder is 3

(2) j > 7 > 6 > k

Statement 1::

J = nK +3

J+K = odd their must be one number from J,K so that sum will be odd.
If K is odd depending on n value J can be even or odd. So In sufficient.
It also signifies k >3

Statement 2:

j > 7 So J can be 10,9,8

K can be 5,4,3,2,1

So In Sufficient.

Combining both of them.
K cn be 4,5 K can have two values.

So In sufficient.
Ans is E.
_________________

Thanks,
AB

+1 Kudos if you like and understand.

Re: If j and k are positive integers and j + k is odd   [#permalink] 04 Feb 2014, 09:33
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