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 2601:30 AM EDT
-02:30 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
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 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 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.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
23 Apr 2021, 08:15
Kudos
Bookmarks
D
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:
94% (01:15) correct
6%
(02:00)
wrong
based on 111
sessions
History
Date
Time
Result
Not Attempted Yet
There are 600 boys in a hostel. Each plays either hockey or football or both. If 75% play hockey and 45% play football, how many play both?
(A) 48
(B) 60
(C) 80
(D) 120
(E) 150
(A) 48
(B) 60
(C) 80
(D) 120
(E) 150
Updated on: 23 Apr 2021, 08:47
Originally posted by ntngocanh19 on 23 Apr 2021, 08:36.
Last edited by ntngocanh19 on 23 Apr 2021, 08:47, edited 1 time in total.
Last edited by ntngocanh19 on 23 Apr 2021, 08:47, edited 1 time in total.
Kudos
Bookmarks
Each plays either hockey or football or both.
So we have:
- 75% play hockey => 25% only play football
- 45% play football => 55% only play hockey
=> % play both football and hockey = 100-25-55 = 20%
=> Number of boys play both is 600*20%= 120
Hence choice D
(Edited: I miscalculate : ()
So we have:
- 75% play hockey => 25% only play football
- 45% play football => 55% only play hockey
=> % play both football and hockey = 100-25-55 = 20%
=> Number of boys play both is 600*20%= 120
Hence choice D
(Edited: I miscalculate : ()
23 Apr 2021, 08:43
Kudos
Bookmarks
There are 600 boys in a hostel. Each plays either hockey or football or both. If 75% play hockey and 45% play football, how many play both?
(A) 48
(B) 60
(C) 80
(D) 120
(E) 150
This is a sets Problem
The formula is
\(AUB = A + B - A∩B \)
Total number of boys = Boys who play hockey + Boys who play Football - Boys who play both
Boys who play Hockey =\(\frac{75}{100}\) *600 =450
Boys who play Football =\(\frac{45}{100}\) *600 =270
Therefore substituting the values in the above formula
600=450+270 -Boys who play both
Boys who play both = 120 Option D
(A) 48
(B) 60
(C) 80
(D) 120
(E) 150
This is a sets Problem
The formula is
\(AUB = A + B - A∩B \)
Total number of boys = Boys who play hockey + Boys who play Football - Boys who play both
Boys who play Hockey =\(\frac{75}{100}\) *600 =450
Boys who play Football =\(\frac{45}{100}\) *600 =270
Therefore substituting the values in the above formula
600=450+270 -Boys who play both
Boys who play both = 120 Option D
