|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
35% (02:24) correct
65%
(02:02)
wrong
based on 130
sessions
History
Date
Time
Result
Not Attempted Yet
AB is a chord of a circle. AB = 5 cm. A tangent parallel to AB touches the arc AB at E. What is the radius of the circle?
1. AB is not a diameter of the circle.
2. The distance between AB and the tangent at E is 5 cm.
1. AB is not a diameter of the circle.
2. The distance between AB and the tangent at E is 5 cm.
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
10 Jun 2019, 08:56
Kudos
Bookmarks
nick1816
Statement 1 does not mean much..
2. The distance between AB and the tangent at E is 5 cm
We can draw a triangle by joining E with the center. This line OE will bisect chord AB at 90'.
The triangle AOG will give a value of r ..
\(r^2=(r-5)^2+2.5^2......r^2=r^2+25-10r+6.25.....10r=31.25....r=3.125\)
Although B is s the answer, but values are not proper as we get r-5 a negative quantity.
Attachments
chetan1.png [ 56.6 KiB | Viewed 5846 times ]
10 Jun 2019, 09:56
Kudos
Bookmarks
chetan2u
But , the length can't be in negative , right.? And hence, the answer should be E. Correct me if am wrong.
Posted from my mobile device
