Last visit was: 20 Apr 2025, 13:49 It is currently 20 Apr 2025, 13:49
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

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.

Go to My Error Log Learn more
Close

Request Expert Reply

Confirm Cancel
PREVIOUS TOPIC
NEXT TOPIC

The number of 3-digit integers all of whose digits are even

Tags :
Find Similar Topics  About  Add a Tag

Show Tags
Hide Tags

avatar
Raed
Intern
Intern
Joined: 22 Apr 2018
Posts: 1
Own Kudos [?]: 1 [1]
Given Kudos: 0
Send PM
The number of 3-digit integers all of whose digits are even [#permalink] New post   Updated on: 23 Apr 2018, 01:11
1
00:00

Question Stats:

56% (01:09) correct 43% (00:50) wrong based on 37 sessions

Hide Show timer Statistics

Quantity A
Quantity B
The number of 3-digit integers all of whose digits are even
The number of 3-digit integers all of whose digits are odd




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.

The answer is B. I do not know why is that because I thought the 3 digit could be as example 426 and 317, so I can also assume it is going to be 244 and 739
so my answer is D but I got it wrong. Could any one explain that to me ?
ShowHide Answer
Official Answer
B

Originally posted by Raed on 22 Apr 2018, 10:43.
Last edited by Carcass on 23 Apr 2018, 01:11, edited 1 time in total.
Edited by Carcass
User avatar
D
Carcass
Verbal Expert
Joined: 18 Apr 2015
Posts: 31603
Own Kudos [?]: 37831 [0]
Given Kudos: 26239
Send PM
Re: The number of 3-digit integers all of whose digits are even [#permalink] New post   23 Apr 2018, 01:32
Expert Reply
Hi, and welcome to the board.
First of all, please, post the question under the right section a question.

here the rules to follow. Thank you

https://gre.myprepclub.com/forum/rules-for ... -1083.html
https://gre.myprepclub.com/forum/qq-how-to ... -2357.html

back to your question. It says only 3 digit integers and that's it. You cannot assume they are consecutive or not or anything else.

It is not a clear question. The answer is D but for different reasoning.

If we have A the minimum possible configuration for 3 even numbers, then we do have 200 and for B 111 so the answer is A.

If we do have for A 222 and for B 373 the answer is B.

So is impossible to have B as the right answer.

Regards
avatar
Sriramm
Intern
Intern
Joined: 09 Jul 2019
Posts: 1
Own Kudos [?]: 2 [2]
Given Kudos: 0
Send PM
Re: The number of 3-digit integers all of whose digits are even [#permalink] New post   07 Dec 2019, 21:13
2
Actually B is the answer
The number of 3 digit numbers whose all the digits even has 3 slots to get filled by (0,2,4,6,8). But the first slot cannot be 0, so it can be filled in 4 ways, the rest of the two slots can be filled in 5 ways each. Hence A is 4*5*5.
The number of ways in which all the 3 digits are odd is 5*5*5 .
Hence B is the answer
User avatar
bumpbot
GRE Prep Club Legend
GRE Prep Club Legend
Joined: 07 Jan 2021
Posts: 5279
Own Kudos [?]: 77 [0]
Given Kudos: 0
Send PM
Re: The number of 3-digit integers all of whose digits are even [#permalink] New post   19 Sep 2023, 22:08
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Prep Club for GRE Bot
gmatclubot
Re: The number of 3-digit integers all of whose digits are even [#permalink]
19 Sep 2023, 22:08
Moderators:
adewale223
GRE Instructor
108 posts
bronaugust
GRE Forum Moderator
37 posts
BrushMyQuant
Moderator
1131 posts
VibhuAnurag
GRE Instructor
234 posts

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

Main navigation

Partners

GRE Resources

www.ets.org/gre | About | Terms and Conditions and Privacy Policy | Prep Club for GRE Rules | Contact