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.
Jul 1609:30 AM EDT
-11:30 AM EDT
Is INSEAD your dream b-school and you're looking for solid prep and application strategies to get there? Check out Barkavi’s end-to-end journey to know how she did! Get insights into the INSEAD admissions process, know what Adcoms look at, and more!
Jul 1611:00 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.
Jul 0901:00 PM EDT
-02:00 PM EDT
More Target Test Prep students are earning 100th percentile GMAT scores. Don’t settle for less when the Target Test Prep course gives you everything you need to score high on the GMAT. Start your 5-day free trial today.
Jul 1410:00 AM PDT
-11:59 PM PDT
GMAT Preparation Online - A limited time sale use code: EXPERTSGLOBAL10
Jul 1911:00 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
Jul 1911:30 AM EDT
-12:30 PM EDT
Struggling to find the right strategies to score a 99 %ile on GMAT Focus? Riya (GMAT 715) boosted her score by 100-points in just 15 days! Discover how the right mentorship, tailored strategies, and an unwavering mindset can transform your GMAT prep.
20 Mar 2017, 04:41
Kudos
Bookmarks
A
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:
71% (01:16) correct
29%
(01:49)
wrong
based on 175
sessions
History
Date
Time
Result
Not Attempted Yet
A mathematics professor can grade 20 exam papers in one day. How long will it take him to grade 30 papers if he is joined a colleague grading twice as fast?
A. 1/2 day
B. 3/4 day
C. 1 day
D. 3/2 days
E. 2 days
A. 1/2 day
B. 3/4 day
C. 1 day
D. 3/2 days
E. 2 days
0akshay0
Joined: 19 Apr 2016
Last visit: 14 Jul 2019
Posts: 194
Own Kudos:
Given Kudos: 59
Location: India
Schools: Jindal '20 Kelley '20 Broad '20 Carey '20 Mays '20
GMAT 1: 570 Q48 V22
GMAT 2: 640 Q49 V28
GPA: 3.5
WE:Web Development (Computer Software)
Schools: Jindal '20 Kelley '20 Broad '20 Carey '20 Mays '20
GMAT 2: 640 Q49 V28
Posts: 194
Kudos:
622
20 Mar 2017, 05:17
Kudos
Bookmarks
Bunuel
A mathematics professor can grade 20 exam papers in one day. How long will it take him to grade 30 papers if he is joined a colleague grading twice as fast?
A. 1/2 day
B. 3/4 day
C. 1 day
D. 3/2 days
E. 2 days
A. 1/2 day
B. 3/4 day
C. 1 day
D. 3/2 days
E. 2 days
professor can grade 20 exam papers in one day which means 10 exam papers in half day
colleague can grade 40 exam papers in one day which means 20 exam papers in half day
so both of them working together will finish grading 30 exam papers in half day
Hence option A is correct
Hit Kudos if you liked it
22 Mar 2017, 09:37
Kudos
Bookmarks
Bunuel
A mathematics professor can grade 20 exam papers in one day. How long will it take him to grade 30 papers if he is joined a colleague grading twice as fast?
A. 1/2 day
B. 3/4 day
C. 1 day
D. 3/2 days
E. 2 days
A. 1/2 day
B. 3/4 day
C. 1 day
D. 3/2 days
E. 2 days
We are given that the rate of a math professor is 20 papers per day. If he were to join with his colleague, who grades twice as fast, or 40 papers per day, the combined rate of the 2 professors would be 20 + 40 = 60 papers per day.
Thus, it would take 30/60 = 1/2 a day to grade 30 papers.
Answer: A
