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For the figure BELOW, which of the following statements about –

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For the figure BELOW, which of the following statements about –  [#permalink]

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New post 04 Jun 2017, 07:02
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A
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D
E

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  35% (medium)

Question Stats:

59% (01:02) correct 41% (01:04) wrong based on 116 sessions

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For the figure BELOW, which of the following statements about –3a and 3b must be true?

(A) –3a = 3b
(B) –3a > 3b
(C) –3a < 3b
(D) –3a ≠ 3b
(E) there is not enough information to decide

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Re: For the figure BELOW, which of the following statements about –  [#permalink]

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New post 04 Jun 2017, 09:37
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SajjadAhmad wrote:
For the figure BELOW, which of the following statements about –3a and 3b must be true?

(A) –3a = 3b
(B) –3a > 3b
(C) –3a < 3b
(D) –3a ≠ 3b
(E) there is not enough information to decide

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hi,

you can easily see that a will be some negative value and b will be some positive value

here the comparison is between -3a and 3b..
since a is negative -3a will be POSITIVE and also b is positive so 3b will be positive..
1) a=-2, b=2......-3a=3b
2) a=-1, b=2......-3a<3b
3) a=-2, b=1......-3a>3b
so all possiblities are there.

answer is E
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For the figure BELOW, which of the following statements about –  [#permalink]

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New post 04 Jun 2017, 09:43
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Answer is Cannot be determined. From the given graph we can conclude that a (a y coordinate in 4th quadrant) seeks a negative value where as b (y-coordinate in 2nd Quadrant) seeks +ve value. Since we dont the exact values of a and b and the figure is not to scale we can establish a relation between -a and b.


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Re: For the figure BELOW, which of the following statements about –  [#permalink]

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New post 05 Sep 2017, 04:08
Jk8269 wrote:
Answer is Cannot be determined. From the given graph we can conclude that a (a y coordinate in 4th quadrant) seeks a negative value where as b (y-coordinate in 2nd Quadrant) seeks +ve value. Since we dont the exact values of a and b and the figure is not to scale we can establish a relation between -a and b.


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Thanks, like how you solved with this reasoning!
Re: For the figure BELOW, which of the following statements about – &nbs [#permalink] 05 Sep 2017, 04:08
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