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.
Apr 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
31 Jul 2016, 03:14
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
70% (02:42) correct
30%
(02:25)
wrong
based on 96
sessions
History
Date
Time
Result
Not Attempted Yet
A circular hole is cut in a circular disc of diameter 10/3 m so that the weight of the disc is reduced to 1/4 of its original weight. The diameter of the hole is
A. \(3*\sqrt 3\) m
B. 4.5 m
C. 5.4 m
D. \(\frac{5}{\sqrt 3}\) m
E. \(2*\sqrt 4\) m
A. \(3*\sqrt 3\) m
B. 4.5 m
C. 5.4 m
D. \(\frac{5}{\sqrt 3}\) m
E. \(2*\sqrt 4\) m
Bunuel
area of disc =pi*r^2=pi*25/9
let cutout disc=Pi*r^2
so pi*25/9-Pi*r^2=(1/4)*pi*25/9
but i mthinking the dia of cutout disc must be smaller than dia of bigger one which is 10/3 ~3m
but none of option is there less than 3???
Plz explain anyone
Thanks
AbdurRakib
Joined: 11 May 2014
Last visit: 03 Mar 2026
Posts: 464
Own Kudos:
Given Kudos: 220
Status:I don't stop when I'm Tired,I stop when I'm done
Location: Bangladesh
Concentration: Finance, Leadership
Schools: Wharton '20 Yale '20 Tepper '20
GPA: 2.81
WE:Business Development (Real Estate)
Updated on: 31 Jul 2016, 05:53
Originally posted by AbdurRakib on 31 Jul 2016, 05:34.
Last edited by AbdurRakib on 31 Jul 2016, 05:53, edited 1 time in total.
Last edited by AbdurRakib on 31 Jul 2016, 05:53, edited 1 time in total.
Kudos
Bookmarks
Bunuel
Dear Bunuel,
I guess answer choice D has a typo error.D should be \(\frac{5}{\sqrt{3}}\)m,then Correct answer is D
Let, radius of the hole =r
So we can write, \(\pi\)\((\frac{5}{3})^2\)-\(\pi\)\(r^2\)=\(\frac{1}{4}\)\(\pi\)\((\frac{5}{3})^2\),or \((\frac{5}{3})^2\)-\(r^2\)=\(\frac{1}{4}\)\((\frac{5}{3})^2\),or \(\frac{3}{4}\)\((\frac{5}{3})^2\)=\(r^2\)
So, Diameter of the hole==2*\(\sqrt{\frac{3}{4}(\frac{5}{3})^2}\)=2(\(\sqrt{3}\)/2)*\(\frac{5}{3}\)=\(\frac{5}{\sqrt{3}}\)
Correct Answer is \(\frac{5}{\sqrt{3}}\)
