|
|
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.
03 Oct 2025, 01:26
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
81% (01:09) correct
19%
(01:13)
wrong
based on 145
sessions
History
Date
Time
Result
Not Attempted Yet
The 250 students enrolled at ABC University are taking undergraduate courses, graduate courses, or both. How many students are taking graduate courses?
(1) 200 students are taking undergraduate courses.
(2) 50 students are taking both undergraduate and graduate courses.
(1) 200 students are taking undergraduate courses.
(2) 50 students are taking both undergraduate and graduate courses.
03 Oct 2025, 01:42
Kudos
Bookmarks
We want: Number of students taking graduate courses.
Total students = 250.
----------------------------------------------------------
Statement (1):
200 students are taking undergraduate courses.
That means the rest (250 – 200 = 50) are either taking only graduate OR graduate + undergrad.
But we don’t know how many are taking both.
So we cannot find exact graduate number.
👉 Not sufficient.
----------------------------------------------------------
Statement (2):
50 students are taking both undergrad and grad.
Good to know, but we don’t know how many are in undergrad or total distribution.
👉 Not sufficient.
----------------------------------------------------------
Combine (1) + (2):
200 undergrad total.
50 of those are also in grad.
So undergrad only = 200 – 50 = 150.
Total students = 250.
So grad students = Total – Undergrad only = 250 – 150 = 100.
👉 Sufficient.
---
Answer: C (Both statements together are sufficient, but alone neither is).
Total students = 250.
----------------------------------------------------------
Statement (1):
200 students are taking undergraduate courses.
That means the rest (250 – 200 = 50) are either taking only graduate OR graduate + undergrad.
But we don’t know how many are taking both.
So we cannot find exact graduate number.
👉 Not sufficient.
----------------------------------------------------------
Statement (2):
50 students are taking both undergrad and grad.
Good to know, but we don’t know how many are in undergrad or total distribution.
👉 Not sufficient.
----------------------------------------------------------
Combine (1) + (2):
200 undergrad total.
50 of those are also in grad.
So undergrad only = 200 – 50 = 150.
Total students = 250.
So grad students = Total – Undergrad only = 250 – 150 = 100.
👉 Sufficient.
---
Answer: C (Both statements together are sufficient, but alone neither is).
03 Oct 2025, 04:15
Kudos
Bookmarks
Bunuel
Let’s consider a two set Venn diagram
let the common part be denoted as x.
set 2 denotes undergraduate only = (a-x)
set 1 denotes the graduate part only = (b-x).
given that : (a-x)+ x + (b-x) = 250
a + b - x = 250 ————- equation 1.
we need to find b?
statement 1:
(1) 200 students are taking undergraduate courses.
from the statement ; (a-x)+ x = 200. That’s a = 200. Hence, insufficient
statement 2:
(2) 50 students are taking both undergraduate and graduate courses.
x = 50 , we don’t know the values of a. Hence insufficient.
Combining both statements, we get
a + b - x = 250
200 + b -50 = 250
b = 100
Option C
Attachment:
GMAT-Club-Forum-86k5fjbj.png [ 2.68 KiB | Viewed 741 times ]
