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Is k + m < 0 ? (1) k < 0 (2) km > 0

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Current Student
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Status: Persevere
Joined: 08 Jan 2016
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Location: Hong Kong
GMAT 1: 750 Q50 V41
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Is k + m < 0 ? (1) k < 0 (2) km > 0  [#permalink]

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New post 22 May 2016, 21:36
2
8
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

80% (00:38) correct 20% (00:35) wrong based on 374 sessions

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Is k + m < 0 ?


(1) k < 0
(2) km > 0


(DS09260)
Current Student
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B
Joined: 12 Jan 2016
Posts: 70
Location: United States
Concentration: Operations, General Management
GMAT 1: 690 Q49 V35
GPA: 3.5
WE: Supply Chain Management (Consumer Electronics)
Re: Is k + m < 0 ? (1) k < 0 (2) km > 0  [#permalink]

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New post 22 May 2016, 21:45
1
1) K <0, but this does not say anything about m. When k = -2 and m = 3, k +m > 0 and when k = -2 and m = -1, K + m < 0.
Not Sufficient

2) km > 0. Both k and m are positive (k +m > 0 ) or both k,m are negative (k+m < 0) . Not sufficient

When you combine both statements, you can conclude that k < 0 (statement 1) and m <0 (from statement 2, km > 0, so if k <0, then m <0). So, k + m < 0.

My answer would be C.
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Re: Is k + m < 0 ? (1) k < 0 (2) km > 0  [#permalink]

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New post 18 Oct 2018, 07:42
nalinnair wrote:
Is k + m < 0 ?


(1) k < 0
(2) km > 0


(DS09260)


from statement 1) k < 0, this doesn't provide us anything on m so it cannot help to decide. insufficient.

from statement 2) km > 0 this tells us that k and m are of the same sign. Both are either negative or positive. Doesn't help again. Insufficient.

Combined it tells us that k is negative and that km must be of the same sign so m is negative.

Sufficient.

C
GMAT Club Bot
Re: Is k + m < 0 ? (1) k < 0 (2) km > 0 &nbs [#permalink] 18 Oct 2018, 07:42
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