GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
In the figure above, x + y =
[#permalink]
31 May 2021, 04:21
31 May 2021, 04:21
Expert Reply
00:00
Question Stats:
90% (01:16) correct
10% (00:17) wrong based on 20 sessions
Hide Show timer Statistics
In the figure above, x + y =
A. 40
B. 120
C. 140
D. 180
E. 220
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: In the figure above, x + y =
[#permalink]
31 May 2021, 05:04
31 May 2021, 05:04
1
Carcass wrote:
In the figure above, x + y =
A. 40
B. 120
C. 140
D. 180
E. 220
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
We know that the top angle must be 40°.
At the same time, let's call the other 2 angles a and b.
We know that a + b + 40 = 180 (since the 3 angles in a triangle must add to 180°)
Also, since angles on a line must add to 180°, we know that: a = 180-y and b = 180-x
We can now take a + b + 40 = 180 and replace a and b with their equivalent values.
We get: (180-y) + (180-x) + 40 = 180
Simplify: 400 - y - x = 180
Subtract 400 from both sides: -y - x = -220
Multiply both sides by -1 to get: x + y = 220
Answer: E
Cheers,
Brent
gmatclubot
Re: In the figure above, x + y = [#permalink]
31 May 2021, 05:04
Moderators:
