GRE Prep 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.
Yesterday, Carl had 40 percent more CDs than Karen had. Today, Carl ga
[#permalink]
21 Dec 2025, 16:00
21 Dec 2025, 16:00
1
Expert Reply
00:00
Question Stats:
84% (01:23) correct
16% (01:36) wrong based on 25 sessions
Hide Show timer Statistics
Yesterday, Carl had 40 percent more CDs than Karen had. Today, Carl gave 20 percent of his CDs to Karen.
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Quantity A |
Quantity B |
Number of CDs that Carl now has |
Number of CDs that Karen now has |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
- Part of the project: GRE Daily Quant Challenge - Topic-Wise 2025!!!
- Also replying to the unanswered questions
Re: Yesterday, Carl had 40 percent more CDs than Karen had. Today, Carl ga
[#permalink]
30 Dec 2025, 16:19
30 Dec 2025, 16:19
1
Yesterday, Carl had 40 percent more CDs than Karen had.
Let's let C1 = the # of CDs Carl had yesterday and K1 = the # of CDs Karen had yesterday.
C1 = 1.4K1
Today, Carl gave 20 percent of his CDs to Karen.
Let's let C2 = the # of CDs Carl has today and K2 = the # of CDs Karen has today.
C2 = 1.4K1(0.8) and K2 = K1 + 0.2C1 = K1 + 0.2(1.4K1)
Simplifying, you get:
C2 = 1.12K1 and K2 = K1 + 0.28K1 = 1.28K1
1.12K1 < 1.28K1
C2 < K2
Quantity A < Quantity B
Quantity B is bigger
Let's let C1 = the # of CDs Carl had yesterday and K1 = the # of CDs Karen had yesterday.
C1 = 1.4K1
Today, Carl gave 20 percent of his CDs to Karen.
Let's let C2 = the # of CDs Carl has today and K2 = the # of CDs Karen has today.
C2 = 1.4K1(0.8) and K2 = K1 + 0.2C1 = K1 + 0.2(1.4K1)
Simplifying, you get:
C2 = 1.12K1 and K2 = K1 + 0.28K1 = 1.28K1
1.12K1 < 1.28K1
C2 < K2
Quantity A < Quantity B
Quantity B is bigger
gmatclubot
Re: Yesterday, Carl had 40 percent more CDs than Karen had. Today, Carl ga [#permalink]
30 Dec 2025, 16:19
Moderators:
