Last visit was: 22 Dec 2024, 17:32 It is currently 22 Dec 2024, 17:32

Close

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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GRE score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel
Verbal Expert
Joined: 18 Apr 2015
Posts: 30475
Own Kudos [?]: 36821 [0]
Given Kudos: 26100
Send PM
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12234 [0]
Given Kudos: 136
Send PM
Manager
Manager
Joined: 02 Sep 2019
Posts: 181
Own Kudos [?]: 144 [0]
Given Kudos: 94
Concentration: Finance
GRE 1: Q151 V148
GPA: 3.14
Send PM
Intern
Intern
Joined: 11 Dec 2020
Posts: 13
Own Kudos [?]: 17 [0]
Given Kudos: 41
Send PM
Re: y = (23)(24)(25)(26)(27) [#permalink]
1
There's also another rule to make sure whether or not the unit digit is 0 which is called (5*2) pair. If you find one pair of 5 and 2 that means the number ends with 0 for sure!
In this question 25 and 24 provide the minimum requirement of 5*2 pair, as Brent mentioned above.
avatar
Intern
Intern
Joined: 27 Dec 2020
Posts: 19
Own Kudos [?]: 16 [0]
Given Kudos: 0
Send PM
Re: y = (23)(24)(25)(26)(27) [#permalink]
1
Simply try to find a 5 and a 2 in the units digit.
We have two options here, 4*5 or 5*6, pick your jam.
Now that we have a 0, ignore everything else and just compare with the other value given.

Here, Qa=Qb ; C is the answer.
Verbal Expert
Joined: 18 Apr 2015
Posts: 30475
Own Kudos [?]: 36821 [0]
Given Kudos: 26100
Send PM
y=23*24*25*26*27 [#permalink]
Expert Reply
\(y=23*24*25*26*27\)


Quantity A
Quantity B
The unit digit
0



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: The Butler-GRE Daily New Quant and Verbal Questions to Practice (2023) - Gain 20 Kudos & Get FREE Access to GRE Prep Club TESTS
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Free Materials for the GRE General Exam - Where to get it!!
GRE Geometry Formulas
GRE - Math Book
GRE Instructor
Joined: 23 Dec 2022
Posts: 234
Own Kudos [?]: 193 [1]
Given Kudos: 4
Send PM
y=23*24*25*26*27 [#permalink]
1
The answer is C.

y has two even numbers, so it is a multiple of 2. Y is also a multiple of 25, so it is a multiple of 5 as well. Since it is a multiple of 5*2, it has to end with a zero.
Prep Club for GRE Bot
y=23*24*25*26*27 [#permalink]
Moderators:
GRE Instructor
88 posts
GRE Forum Moderator
37 posts
Moderator
1115 posts
GRE Instructor
234 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne