Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
|
|
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.
Nov 0911:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 10
11:00 AM IST
-01:00 PM IST
Attend this session to evaluate your current skill level, learn process skills, and solve through tough Arithmetic questions 
Nov 1305:30 AM PST
-06:00 PM PST
We are excited to bring you the Fall edition of the MBA Spotlight Fair! Meet admission officers from the top 20 MBA programs—including HBS, Stanford, and Wharton—as you prepare for Round 2 applications.
22 Oct 2021, 06:45
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
79% (02:26) correct
21%
(03:16)
wrong
based on 87
sessions
History
Date
Time
Result
Not Attempted Yet
The area of the circle above is \(49\pi\) and the perimeter of sector OABC is \(14 + \frac{35{\pi}}{12}\). What is the value of t?
(A) 56
(B) 72
(C) 75
(D) 80
(E) 85
Attachment:
1.JPG [ 7.7 KiB | Viewed 2141 times ]
22 Oct 2021, 08:18
Kudos
Bookmarks
Bunuel
The area of the circle above is \(49\pi\) and the perimeter of sector OABC is \(14 + \frac{35{\pi}}{12}\). What is the value of t?
(A) 56
(B) 72
(C) 75
(D) 80
(E) 85
Attachment:
1.JPG
\(πr^2= 49\pi\)
So, \(r = 7\)
We have \(OA + OB = 7 + 7 = 14\)
Thus, \(\frac{θ}{360} × 2πr = \frac{35π}{12}\)
Or, \(\frac{θ}{15} = 5\)
Thus, \(θ = 75\), Answer will be (C)
