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 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.
23 Apr 2018, 01:21
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
93% (00:49) correct
7%
(01:05)
wrong
based on 95
sessions
History
Date
Time
Result
Not Attempted Yet
Of the 220 restaurants in a certain city, how many serve neither shrimp nor crab?
(1) 94 serve shrimp and 72 serve crab.
(2) 42 serve both shrimp and crab.
(1) 94 serve shrimp and 72 serve crab.
(2) 42 serve both shrimp and crab.
23 Apr 2018, 01:31
Kudos
Bookmarks
Bunuel
This is a two-overlapping sets problem.
1) We know shrimp = 94 and crab = 72. Entire crab could have overlap with shrimp or non could. Hence insufficient as we do not know how many are both
2) We know how many are both shrimp and crab but no info about either individually. Hence insufficient
(1) + (2) together. It is sufficient as we now have all the info
Shrimp = 94. Crab = 72. Both = 42. Hence either shrimp or crab or both = 94 + 72 - 42 = 124.
Hence : neither + 124 = 220
neither = 220 - 124 = 96
Hence Option (C) is our answer.
Best,
Gladi
23 Apr 2018, 21:43
Kudos
Bookmarks
Solution
Given:
• Total number of restaurants in the city = 220
To find:
• Out of 220 restaurants, how many serve neither shrimp nor crab
Approach and Working:
Analysing Statement 1
• As per the information given in Statement 1, 94 restaurants serve shrimp and 72 restaurants serve crab.
• From this, we cannot say if there is any restaurant which serves both.
- o Therefore, from statement 1, we cannot conclude.
Analysing Statement 2
• As per the information given in Statement 2, 42 restaurants serve both shrimp and crab.
• From this, we cannot find out how many such restaurants are there which serve only shrimp or only crab.
- o Therefore, from statement 2, we cannot conclude.
Combine both statements
• Combining the information given in the statements, we know 94 serve shrimp, 72 serve crab and 42 serve both.
• Therefore (94 – 42) = 52 serve only shrimp and (72 – 42) = 30 serve only crab.
• Number of restaurants serving at least one of shrimp and crab = 52 + 30 + 42 = 124
• Therefore, Number of restaurants serving none of shrimp and crab = 220 – 124 = 96
Hence, by combining the statements we can find out the answers.
The correct answer is option C.
Answer: C
