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 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2211:00 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 23
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Nov 2510:00 AM EST
-11:00 AM EST
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.
18 Mar 2025, 00:30
Kudos
Bookmarks
E
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:
61% (01:10) correct
39%
(01:03)
wrong
based on 103
sessions
History
Date
Time
Result
Not Attempted Yet
Sam took a test that had 80 questions numbered from 1 to 80. How many of the questions did he answer correctly?
(1) He answered 3/4 of the odd numbered questions in the first half of the test correctly.
(2) He answered 7 more questions correctly in the first half of the test than in the second half of the test.
(1) He answered 3/4 of the odd numbered questions in the first half of the test correctly.
(2) He answered 7 more questions correctly in the first half of the test than in the second half of the test.
Updated on: 18 Mar 2025, 02:04
Originally posted by ManifestDreamMBA on 18 Mar 2025, 00:42.
Last edited by ManifestDreamMBA on 18 Mar 2025, 02:04, edited 1 time in total.
Last edited by ManifestDreamMBA on 18 Mar 2025, 02:04, edited 1 time in total.
Kudos
Bookmarks
Total Q = 80
Correct Q = ?
Statement 1
Assuming First half is half of the questions
First half of the test = 40
Odd numbered questions in the first half = 20
3/4 of the odd numbered questions in the first half = 3/4*20 = 15
We don't know how he performed in the second half or with even numbered questions
Insufficient
Statement 2
He answered 7 more questions correctly in the first half of the test than in the second half of the test
FH = SH + 7
Without SH, we don't know correct questions in total, which is FH + SH
Insufficient
Combined
We still don't know how he performed with the even numbered questions in the first half to get value of FH
Insufficient
Correct Q = ?
Statement 1
Assuming First half is half of the questions
First half of the test = 40
Odd numbered questions in the first half = 20
3/4 of the odd numbered questions in the first half = 3/4*20 = 15
We don't know how he performed in the second half or with even numbered questions
Insufficient
Statement 2
He answered 7 more questions correctly in the first half of the test than in the second half of the test
FH = SH + 7
Without SH, we don't know correct questions in total, which is FH + SH
Insufficient
Combined
We still don't know how he performed with the even numbered questions in the first half to get value of FH
Insufficient
Bunuel
18 Mar 2025, 01:31
Kudos
Bookmarks
Bunuel
Sam took a test which contains 80 questions .
Odd numbered question = 40
Even numbered question = 40
To find the number of correct attempts C.
Statement 1:
(1) He answered 3/4 of the odd numbered questions in the first half of the test correctly.
first half means 40 questions , with odd and even questions split equally - 20 each.
3/4*20 questions are correct = 15 odd numbered questions are correct, 5 incorrect.
total correct C , we can’t find. Reason: we don’t know the even correct in first half or the number of correct (even/ odd questions) in the second half.
hence not sufficient
Statement 2:
(2) He answered 7 more questions correctly in the first half of the test than in the second half of the test.
Seeing in isolation we arrive that second half correct = x, then first half correct = x+7.
total correct c = x+x+7 = 2x+7.
x ? Not know hence not sufficient.
combining statements 1 and 2:
Statement 1; gives number of correct answers for first half of odd numbered questions. Hence, that value cannot be taken as x.
even numbered correct in first half ???? Hence option E
