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.
May 0510:00 AM PDT
-11:00 AM PDT
GMAT Inequalities is a high-frequency topic in GMAT Quant, but many students struggle because the concepts behave differently from standard algebra. Understanding the right rules, patterns, and edge cases can significantly improve both speed and accuracy.- May 06
08:30 AM PDT
-09:30 AM PDT
In Episode 3 of our GMAT Ninja Critical Reasoning series, we tackle Discrepancy, Paradox, and Explain an Oddity questions. You know the feeling: the passage gives you two facts that seem completely contradictory.... - May 08
08:00 AM PDT
-08:30 AM PDT
Join the special YouTube live-stream for selecting the winners of GMAT Club MBA Scholarships sponsored by Juno live. Watch who gets these coveted MBA scholarships offered by GMAT Club and Juno.
24 Mar 2026, 19:00
Kudos
Bookmarks
C
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:
60% (01:34) correct
40%
(01:34)
wrong
based on 89
sessions
History
Date
Time
Result
Not Attempted Yet
A museum ran a security system stress test continuously before shutting it down. On what day of the week did the museum shut down the test?
(1) If the museum had continued the test for another 6 hours, the test would have ended on Monday.
(2) If the museum had shut down the test 17 hours earlier than it actually did, the test would have ended on Monday
(1) If the museum had continued the test for another 6 hours, the test would have ended on Monday.
(2) If the museum had shut down the test 17 hours earlier than it actually did, the test would have ended on Monday
Experience GMAT Club Test Questions
Yes, you've landed on a GMAT Club Tests question
Craving more? Unlock our full suite of GMAT Club Tests here
Want to experience more? Get a taste of our tests with our free trial today
Rise to the challenge with GMAT Club Tests. Happy practicing!
24 Mar 2026, 23:42
Kudos
Bookmarks
So this question is slightly tricky I feel
1: if the test ran for 6 hrs more it would end on Monday
Now it could be that the best ended at 10pm on Sunday so 6 hrs more and it ended on 3 am on Monday
However it could also be that the test ended on 3 pm Monday then 6 hrs more would be 9pm and it would still be Monday
So we can’t really tell if the test ended on Sunday or Monday . Insufficient
2: similar reasoning as statement 1 —— Insufficient
Together , The condition becomes that the test has to end on Monday by ensuring the before and after time
now let see if the test ended on Monday at 5:50 pm or 17:50 hrs on Monday
Then 6hrs more would be 11:50 pm / 23:50 pm on Monday
And 17hrs earlier would be 12:50 am / 00:50 am on Monday
Hence, we can say the test ended on Monday — Sufficient (C)
Note if we took Sunday as the end of test day then it gets eliminated bcz of statement 2
And if you take Tuesday as end of test day then it gets eliminated bcz of statement 1
1: if the test ran for 6 hrs more it would end on Monday
Now it could be that the best ended at 10pm on Sunday so 6 hrs more and it ended on 3 am on Monday
However it could also be that the test ended on 3 pm Monday then 6 hrs more would be 9pm and it would still be Monday
So we can’t really tell if the test ended on Sunday or Monday . Insufficient
2: similar reasoning as statement 1 —— Insufficient
Together , The condition becomes that the test has to end on Monday by ensuring the before and after time
now let see if the test ended on Monday at 5:50 pm or 17:50 hrs on Monday
Then 6hrs more would be 11:50 pm / 23:50 pm on Monday
And 17hrs earlier would be 12:50 am / 00:50 am on Monday
Hence, we can say the test ended on Monday — Sufficient (C)
Note if we took Sunday as the end of test day then it gets eliminated bcz of statement 2
And if you take Tuesday as end of test day then it gets eliminated bcz of statement 1
29 Mar 2026, 02:45
Kudos
Bookmarks
GMAT Club Official Solution:
A museum ran a security system stress test continuously before shutting it down. On what day of the week did the museum shut down the test?
(1) If the museum had continued the test for another 6 hours, the test would have ended on Monday.
If adding 6 hours would make the shutdown day Monday, then the actual shutdown must be sometime from Sunday 18:00 up to Monday 18:00. So the shutdown day could be Sunday or Monday. Not sufficient.
(2) If the museum had shut down the test 17 hours earlier than it actually did, the test would have ended on Monday.
If shifting the shutdown 17 hours earlier would make the shutdown day Monday, then the actual shutdown must be sometime from Monday 17:00 up to Tuesday 17:00. So the shutdown day could be Monday or Tuesday. Not sufficient.
(1)+(2) The shutdown time must satisfy both ranges, so it must be from Monday 17:00 up to Monday 18:00. That means the shutdown day must be Monday. Sufficient.
Or: from (1) we have that the shutdown day could be Sunday or Monday, and from (2) we have that the shutdown day could be Monday or Tuesday. To satisfy both, the shutdown must be on Monday. Sufficient.
Answer: C.
A museum ran a security system stress test continuously before shutting it down. On what day of the week did the museum shut down the test?
(1) If the museum had continued the test for another 6 hours, the test would have ended on Monday.
If adding 6 hours would make the shutdown day Monday, then the actual shutdown must be sometime from Sunday 18:00 up to Monday 18:00. So the shutdown day could be Sunday or Monday. Not sufficient.
(2) If the museum had shut down the test 17 hours earlier than it actually did, the test would have ended on Monday.
If shifting the shutdown 17 hours earlier would make the shutdown day Monday, then the actual shutdown must be sometime from Monday 17:00 up to Tuesday 17:00. So the shutdown day could be Monday or Tuesday. Not sufficient.
(1)+(2) The shutdown time must satisfy both ranges, so it must be from Monday 17:00 up to Monday 18:00. That means the shutdown day must be Monday. Sufficient.
Or: from (1) we have that the shutdown day could be Sunday or Monday, and from (2) we have that the shutdown day could be Monday or Tuesday. To satisfy both, the shutdown must be on Monday. Sufficient.
Answer: C.
