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L 1 is parallel to L 2
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31 Aug 2020, 05:01
31 Aug 2020, 05:01
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62% (01:13) correct
37% (01:09) wrong based on 56 sessions
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GRE L 1 is parallel to L 2.png [ 20.47 KiB | Viewed 2517 times ]
\(\ell_1 \parallel \ell_2\)
Quantity A |
Quantity B |
\(a+b\) |
\(200\) |
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.
Retired Moderator
Joined: 10 Apr 2015
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L 1 is parallel to L 2
[#permalink]
14 Sep 2020, 05:46
14 Sep 2020, 05:46
2
Carcass wrote:
Attachment:
GRE L 1 is parallel to L 2.png
\(\ell_1 \parallel \ell_2\)
Quantity A |
Quantity B |
\(a+b\) |
\(200\) |
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.
Since angles in a triangle must add to 180°, the missing angle in the very narrow triangle must be 120°
Since angles on a line must add to 180°, angle b must be 60°
Since angles in a triangle must add to 180°, the missing angle in the big triangle must be 40°
Since angles on a line must add to 180°, angle a must be 140°
So, a = 140° and b = 60°
We get:
Quantity A: 140° + 60° = 200°
Quantity B: 200°
Answer: C
Cheers,
Brent
gmatclubot
L 1 is parallel to L 2 [#permalink]
14 Sep 2020, 05:46
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