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.
What is the value of a ?
[#permalink]
13 Sep 2019, 10:24
13 Sep 2019, 10:24
Expert Reply
00:00
Question Stats:
100% (01:07) correct
0% (00:00) wrong based on 13 sessions
Hide Show timer Statistics
Attachment:
#greprepclub what is the value of a.jpg [ 18.24 KiB | Viewed 2118 times ]
What is the value of a ?
A. 4
B. \(2 \sqrt{6}\)
C. \(4 \sqrt{6}\)
D. 6
E 24
Moderator
Joined: 02 Jan 2020
Status:GRE Quant Tutor
Posts: 1137
Given Kudos: 9
Location: India
Concentration: General Management
Schools: XLRI Jamshedpur, India - Class of 2014
GMAT 1: 700 Q51 V31
GPA: 2.8
WE:Engineering (Computer Software)
Re: What is the value of a ?
[#permalink]
07 Jun 2020, 01:28
07 Jun 2020, 01:28
1
[Refer attached Image]
We need to find the length of side AC = a
ABC is a right angled triangle right angled at A
Applying Pythagoras theorem we have
\(BC^2\) = \(AB^2\) + \(AC^2\)
\((4+3)^2\) = \(5^2\) + \(a^2\)
\(a^2\) = 49 - 25 = 24 = \(6*2^2\)
=> a = \(2\sqrt{6}\)
So, Answer will be B
Hope it helps!
We need to find the length of side AC = a
ABC is a right angled triangle right angled at A
Applying Pythagoras theorem we have
\(BC^2\) = \(AB^2\) + \(AC^2\)
\((4+3)^2\) = \(5^2\) + \(a^2\)
\(a^2\) = 49 - 25 = 24 = \(6*2^2\)
=> a = \(2\sqrt{6}\)
So, Answer will be B
Hope it helps!
Attachments
image-3.jpg [ 25.02 KiB | Viewed 1408 times ]
gmatclubot
Re: What is the value of a ? [#permalink]
07 Jun 2020, 01:28
Moderators:
