Last visit was: 10 Jul 2025, 00:05 It is currently 10 Jul 2025, 00:05
Close
GMAT 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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 10 July 2025
Posts: 102,612
Own Kudos:
739,959
 [3]
Given Kudos: 97,813
Products:
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 102,612
Kudos: 739,959
 [3]
Kudos
Add Kudos
3
Bookmarks
Bookmark this Post
Most Helpful Reply
User avatar
BrentGMATPrepNow
User avatar
Major Poster
Joined: 12 Sep 2015
Last visit: 13 May 2024
Posts: 6,756
Own Kudos:
34,044
 [3]
Given Kudos: 799
Location: Canada
Expert
Expert reply
Posts: 6,756
Kudos: 34,044
 [3]
3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
General Discussion
User avatar
pandeyashwin
Joined: 14 Jun 2018
Last visit: 25 Jan 2019
Posts: 169
Own Kudos:
Given Kudos: 176
Posts: 169
Kudos: 287
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
CounterSniper
Joined: 20 Feb 2015
Last visit: 14 Apr 2023
Posts: 618
Own Kudos:
Given Kudos: 74
Concentration: Strategy, General Management
Posts: 618
Kudos: 795
Kudos
Add Kudos
Bookmarks
Bookmark this Post
pandeyashwin
Angle E = Angle B = 110
angle d = 0.4*110 = 44

Pandey Ji we need angle A

angle A = angle D = 44 (alternate angle)

or

angle ABC = angle DEC (alternate angle) = 110
angle D = 44
angle ECD = 180 -(110+44) = 26 = angle ACB (vertically opposite)
angle A = 180-(110+26) = 44
User avatar
sudarshan22
User avatar
Retired Moderator
Joined: 30 Jan 2015
Last visit: 10 Nov 2019
Posts: 629
Own Kudos:
Given Kudos: 1,131
Location: India
Concentration: Operations, Marketing
GPA: 3.5
Posts: 629
Kudos: 2,462
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Angle B = Angle E = 110

Angle D = 40% of 110 = 44

Angle C = 180 - ( 110 + 44 ) = 26

Angle A = 180 - ( 110 + 26 ) = 44

Hence, C.
User avatar
Kimberly77
Joined: 16 Nov 2021
Last visit: 07 Sep 2024
Posts: 440
Own Kudos:
Given Kudos: 5,899
Location: United Kingdom
GMAT 1: 450 Q42 V34
Products:
GMAT 1: 450 Q42 V34
Posts: 440
Kudos: 42
Kudos
Add Kudos
Bookmarks
Bookmark this Post
BrentGMATPrepNow
Bunuel

In the figure above, side AB is parallel to side DE, and the measure of angle D is 40% that of angle E, what is the value of angle A?

A. 20
B. 26
C. 44
D. 46
E. 110


Attachment:
image001 (1).gif

Since we have some parallel lines, there are several pairs of equal angles in this diagram.


First of all, ∠E = ∠B. So, ∠E = 110°


Next, since ∠D = 40% of ∠E, we now know that ∠D = 40% of 110%
So, ∠D = 44%


Finally, ∠A = ∠D. So, ∠A = 44°

Answer: D

RELATED VIDEO FROM OUR COURSE

Great illustration BrentGMATPrepNow visually. What angle does it call for ∠E = ∠B (x=x or y=y) ? Thanks Brent
User avatar
BrentGMATPrepNow
User avatar
Major Poster
Joined: 12 Sep 2015
Last visit: 13 May 2024
Posts: 6,756
Own Kudos:
Given Kudos: 799
Location: Canada
Expert
Expert reply
Posts: 6,756
Kudos: 34,044
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Kimberly77
Great illustration BrentGMATPrepNow visually. What angle does it call for ∠E = ∠B (x=x or y=y) ? Thanks Brent



We are told that side AB is parallel to side DE

If you extend parallel lines AB and DE, you will see that we have a y = y situation
User avatar
Kimberly77
Joined: 16 Nov 2021
Last visit: 07 Sep 2024
Posts: 440
Own Kudos:
Given Kudos: 5,899
Location: United Kingdom
GMAT 1: 450 Q42 V34
Products:
GMAT 1: 450 Q42 V34
Posts: 440
Kudos: 42
Kudos
Add Kudos
Bookmarks
Bookmark this Post
BrentGMATPrepNow
Kimberly77
Great illustration BrentGMATPrepNow visually. What angle does it call for ∠E = ∠B (x=x or y=y) ? Thanks Brent



We are told that side AB is parallel to side DE

If you extend parallel lines AB and DE, you will see that we have a y = y situation

Got it thanks Brent BrentGMATPrepNow :thumbsup: :)
Moderators:
Math Expert
102612 posts
PS Forum Moderator
683 posts